# DataGridViewRowCollection

Namespace: **Wisej.Web**

Assembly: **Wisej.Framework** (4.0.0.0)

A collection of [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) objects.

{% tabs %}
{% tab title="C#" %}

```csharp
public class DataGridViewRowCollection : IList, ICollection, IEnumerable, IList<DataGridViewRow>, ICollection<DataGridViewRow>, IEnumerable<DataGridViewRow>
```

{% endtab %}

{% tab title="VB.NET" %}

```visual-basic
Public Class DataGridViewRowCollection
    Inherits IList
    Implements ICollection, IEnumerable, IList(Of DataGridViewRow), ICollection(Of DataGridViewRow), IEnumerable(Of DataGridViewRow)
```

{% endtab %}
{% endtabs %}

## Constructors

### ![](/files/hsR4ok3152WyAf8J2C1u) DataGridViewRowCollection(dataGrid)

Initializes a new instance of the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md) class for the given [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md).

| Name         | Type                                                           | Description                                                                                      |
| ------------ | -------------------------------------------------------------- | ------------------------------------------------------------------------------------------------ |
| **dataGrid** | [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) | The [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) that created this collection. |

## Properties

### ![](/files/hsR4ok3152WyAf8J2C1u) Count

[Int32](https://docs.microsoft.com/dotnet/api/system.int32): Returns the number of rows in the collection.

### ![](/files/hsR4ok3152WyAf8J2C1u) Item(index)

[DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md): Returns the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) at the specified index.

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*index* is less than 0.- or - *index* is equal to or greater than [Count](#count).

## Methods

### ![](/files/hsR4ok3152WyAf8J2C1u) Add()

Adds a new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) to the collection.

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md).

**Throws:**

* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  The row returned by the [RowTemplate](/api/wisej.web/lists-and-grids/datagridview.md#rowtemplate) property has more cells than there are columns in the control.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.

### ![](/files/hsR4ok3152WyAf8J2C1u) Add(values)

Adds a new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) to the collection, and populates the cells with the specified objects.

| Parameter  | Type                                                              | Description                                                                                                                                                  |
| ---------- | ----------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **values** | [Object\[\]](https://docs.microsoft.com/dotnet/api/system.object) | A variable number of objects that populate the cells of the new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md).

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*values* is null.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.\
Or the [VirtualMode](/api/wisej.web/lists-and-grids/datagridview.md#virtualmode) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is set to true.\
Or the row returned by the [RowTemplate](/api/wisej.web/lists-and-grids/datagridview.md#rowtemplate) property has more cells than there are columns in the control.

### ![](/files/hsR4ok3152WyAf8J2C1u) Add(row)

Adds the specified [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) to the collection.

| Parameter | Type                                                                                        | Description                                                                                                                                                                                                                    |
| --------- | ------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **row**   | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) | The [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) to add to the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md).

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*row* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*row* has more cells than there are columns in the control.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.

### ![](/files/hsR4ok3152WyAf8J2C1u) Add(count)

Adds the specified number of new rows to the collection.

| Parameter | Type                                                        | Description                                                                                                                                       |
| --------- | ----------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| **count** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The number of rows to add to the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the last row that was added.

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*count* is less than 1.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.

### ![](/files/hsR4ok3152WyAf8J2C1u) AddCopies(rowIndex, count)

Adds the specified number of rows to the collection based on the row at the specified index.

| Parameter    | Type                                                        | Description                                                                                                                                       |
| ------------ | ----------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| **rowIndex** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The index of the row on which to base the new rows.                                                                                               |
| **count**    | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The number of rows to add to the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the last row that was added.

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*rowIndex* is less than zero or greater than or equal to the number of rows in the control; or *count* is less than zero.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)\
  Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.

### ![](/files/hsR4ok3152WyAf8J2C1u) AddCopy(rowIndex)

Adds a [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) row based on the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) at the specified index.

| Parameter    | Type                                                        | Description                                        |
| ------------ | ----------------------------------------------------------- | -------------------------------------------------- |
| **rowIndex** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The index of the row on which to base the new row. |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md).

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*rowIndex* is less than zero or greater than or equal to the number of rows in the collection.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)\
  Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.

### ![](/files/hsR4ok3152WyAf8J2C1u) AddRange(newRows)

Adds the specified [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) objects to the collection.

| Parameter   | Type                                                                                            | Description                                                                                                                                                                                                                                         |
| ----------- | ----------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **newRows** | [DataGridViewRow\[\]](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) | An array of [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) objects to be added to the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*newRows* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*newRows* contains only one row, and the row it contains has more cells than there are columns in the control.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)\
  Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.

### ![](/files/hsR4ok3152WyAf8J2C1u) Clear()

Clears the collection.

**Throws:**

* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The collection is data bound and the underlying data source does not support clearing the row data. Or the associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents the row collection from being modified:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

### ![](/files/hsR4ok3152WyAf8J2C1u) Contains(row)

Determines whether the specified [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) is in the collection.

| Parameter | Type                                                                                        | Description                                                                                                                                                                                                                       |
| --------- | ------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **row**   | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) | The [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) to locate in the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Returns:** [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean). true if the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) is in the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md); otherwise, false.

### ![](/files/hsR4ok3152WyAf8J2C1u) CopyTo(array, index)

Copies the items from the collection into the specified [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) array, starting at the specified index.

| Parameter | Type                                                                                            | Description                                                                                                                                                                                                                                                               |
| --------- | ----------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **array** | [DataGridViewRow\[\]](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) | A [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) array that is the destination of the items copied from the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |
| **index** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)                                     | The zero-based index in *array* at which copying begins.                                                                                                                                                                                                                  |

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*array* is null.
* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*index* is less than zero.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*array* is multidimensional; or the number of elements in the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md) is greater than the available space from *index* to the end of *array* .

### ![](/files/hsR4ok3152WyAf8J2C1u) GetFirstRow(includeFilter, excludeFilter)

Returns the first [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the specified *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                      |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |

**Returns:** [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). The first [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the specified filters; or null if no row is found.

**Throws:**

* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetFirstRowIndex(includeFilter, excludeFilter)

Returns the index of the first [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the specified *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                      |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the first [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the specified filters; or -1 if no row is found.

**Throws:**

* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetLastRow(includeFilter, excludeFilter)

Returns the last [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                      |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |

**Returns:** [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). The last [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the specified filter; or null if no row is found.

**Throws:**

* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*includeFilter* is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetLastRowIndex(includeFilter, excludeFilter)

Returns the index of the last [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                      |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the last [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the specified filter; or -1 if no row is found.

**Throws:**

* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*includeFilter* is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetNextRow(startRow, includeFilter, excludeFilter)

Returns the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) after *startRow* that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                             |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **startRow**                                       | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md)                     | The row where the method should begin to look for the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.        |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.        |

**Returns:** [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). The next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the filters; or null if no row is found after *startRow* .

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*startRow* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetNextRow(startIndex, includeFilter, excludeFilter)

Returns the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) after *startIndex* that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                                          |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **startIndex**                                     | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)                                                     | The index of the row where the method should begin to look for the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.                     |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.                     |

**Returns:** [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). The next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the filters; or null if no row is found after *startIndex* .

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*startIndex* is less than -1.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetNextRowIndex(startRow, includeFilter, excludeFilter)

Returns the index of the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) after *startRow* that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                             |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **startRow**                                       | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md)                     | The row where the method should begin to look for the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.        |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.        |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the filters; or -1 if no row is found after *startRow* .

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*startRow* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetNextRowIndex(startIndex, includeFilter, excludeFilter)

Returns the index of the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) after *startIndex* that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                                          |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **startIndex**                                     | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)                                                     | The index of the row where the method should begin to look for the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.                     |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.                     |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the next [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the filters; or -1 if no row is found after *startIndex* .

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*startIndex* is less than -1.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetPreviousRow(startRow, includeFilter, excludeFilter)

Returns the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) before *startRow* that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                                 |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **startRow**                                       | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md)                     | The row where the method should begin to look for the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.            |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.            |

**Returns:** [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). The previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the filters; or null if no row is found before *startRow* .

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*startRow* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetPreviousRow(startIndex, includeFilter, excludeFilter)

Returns the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) before *startIndex* that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                                              |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **startIndex**                                     | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)                                                     | The index of the row where the method should begin to look for the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.                         |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.                         |

**Returns:** [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). The previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the filters; or null if no row is found before *startIndex* .

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*startIndex* is greater than the number of rows in the collection.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetPreviousRowIndex(startRow, includeFilter, excludeFilter)

Returns the index of the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) before *startRow* that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                                 |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **startRow**                                       | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md)                     | The row where the method should begin to look for the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.            |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.            |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the filters; or -1 if no row is found before *startRow* .

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*startRow* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetPreviousRowIndex(startIndex, includeFilter, excludeFilter)

Returns the index of the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) before *startIndex* that matches the *includeFilter* and *excludeFilter* .

| Parameter                                          | Type                                                                                                            | Description                                                                                                                                                              |
| -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **startIndex**                                     | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)                                                     | The index of the row where the method should begin to look for the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **includeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.                         |
| **excludeFilter** ![](/files/1vGqtbG2j637vQ4ROWOf) | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.                         |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the previous [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) that matches the filters; or -1 if no row is found before *startIndex* .

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*startIndex* is greater than the number of rows in the collection.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  One or both of the specified filter values is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetRowCount(includeFilter)

Returns the number of rows that match the *includeFilter* .

| Parameter         | Type                                                                                                            | Description                                                                                                                                                |
| ----------------- | --------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **includeFilter** | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A combination of the [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values for inclusion. |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The number of rows that match the *includeFilter* .

**Throws:**

* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*includeFilter* is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetRowsHeight(includeFilter)

Returns the cumulative height of the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) objects that match the *includeFilter* .

| Parameter         | Type                                                                                                            | Description                                                                                                                                      |
| ----------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| **includeFilter** | [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) | A bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values. |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The cumulative height of [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) objects that match the *includeFilter* .

**Throws:**

* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*includeFilter* is not a valid bitwise combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values.

### ![](/files/hsR4ok3152WyAf8J2C1u) GetRowState(rowIndex)

Returns the state of the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) at the specified index.

| Parameter    | Type                                                        | Description           |
| ------------ | ----------------------------------------------------------- | --------------------- |
| **rowIndex** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The index of the row. |

**Returns:** [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md). A combination of [DataGridViewElementStates](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelementstates.md) values indicating the state of the row.

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*rowIndex* is less than zero and greater than the number of rows in the collection.

### ![](/files/hsR4ok3152WyAf8J2C1u) IndexOf(row)

Returns the index of the given [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) in the collection.

| Parameter | Type                                                                                        | Description                                                                                                             |
| --------- | ------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
| **row**   | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) | The [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) to return the index of. |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the given [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md).

### ![](/files/hsR4ok3152WyAf8J2C1u) Insert(index)

Inserts a [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) into the collection at the specified position.

| Parameter | Type                                                        | Description                                                                                                                      |
| --------- | ----------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- |
| **index** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The position at which to insert the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*index* is less than zero or greater than the number of rows in the collection.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  The row returned by the control's [RowTemplate](/api/wisej.web/lists-and-grids/datagridview.md#rowtemplate) property has more cells than there are columns in the control.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.\
Or the [VirtualMode](/api/wisej.web/lists-and-grids/datagridview.md#virtualmode) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is set to true.\
Or the row returned by the [RowTemplate](/api/wisej.web/lists-and-grids/datagridview.md#rowtemplate) property has more cells than there are columns in the control.

### ![](/files/hsR4ok3152WyAf8J2C1u) Insert(index, values)

Inserts a [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) into the collection at the specified position, and populates the cells with the specified objects.

| Parameter  | Type                                                              | Description                                                                                                                                                  |
| ---------- | ----------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **index**  | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)       | The position at which to insert the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md).                             |
| **values** | [Object\[\]](https://docs.microsoft.com/dotnet/api/system.object) | A variable number of objects that populate the cells of the new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*index* is less than zero or greater than the number of rows in the collection.
* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*values* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)\
  The row returned by the control's [RowTemplate](/api/wisej.web/lists-and-grids/datagridview.md#rowtemplate) property has more cells than there are columns in the control.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.\
Or the [VirtualMode](/api/wisej.web/lists-and-grids/datagridview.md#virtualmode) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is set to true.\
Or the row returned by the [RowTemplate](/api/wisej.web/lists-and-grids/datagridview.md#rowtemplate) property has more cells than there are columns in the control.

### ![](/files/hsR4ok3152WyAf8J2C1u) Insert(index, row)

Inserts the specified [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) into the collection.

| Parameter | Type                                                                                        | Description                                                                                                                                                                                                                         |
| --------- | ------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **index** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)                                 | The position at which to insert the row.                                                                                                                                                                                            |
| **row**   | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) | The [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) to insert into the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*index* is less than zero or greater than the number of rows in the collection.
* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*row* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*row* has more cells than there are columns in the control.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.

### ![](/files/hsR4ok3152WyAf8J2C1u) Insert(index, count)

Inserts the specified number of rows into the collection at the specified location.

| Parameter | Type                                                        | Description                                                                                                                                            |
| --------- | ----------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **index** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The position at which to insert the rows.                                                                                                              |
| **count** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The number of rows to insert into the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*index* is less than zero or greater than the number of rows in the collection; or *count* is less than 1.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.

### ![](/files/hsR4ok3152WyAf8J2C1u) InsertCopies(indexSource, indexDestination, count)

Inserts rows into the collection at the specified position.

| Parameter            | Type                                                        | Description                                                                                                                                                                                                                                      |
| -------------------- | ----------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **indexSource**      | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The index of the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) on which to base the new rows.                                                                                                      |
| **indexDestination** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The position at which to insert the rows.                                                                                                                                                                                                        |
| **count**            | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The number of [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) objects to add to the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*indexSource* is less than zero or greater than the number of rows in the collection minus one; or *indexDestination* is less than zero or greater than the number of rows in the collection; or *count* is less than 1.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)\
  Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.

### ![](/files/hsR4ok3152WyAf8J2C1u) InsertCopy(indexSource, indexDestination)

Inserts a new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) into the collection at the specified *indexDestination* , based on the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) at *indexSource* .

| Parameter            | Type                                                        | Description                                                                                                                                                                                                                        |
| -------------------- | ----------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **indexSource**      | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The index of the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) on which to base the new [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md). |
| **indexDestination** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The position at which to insert the row.                                                                                                                                                                                           |

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*indexSource* is less than zero or greater than the number of rows in the collection minus one; or *indexDestination* is less than zero or greater than the number of rows in the collection.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)\
  Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.

### ![](/files/hsR4ok3152WyAf8J2C1u) InsertRange(index, newRows)

Inserts the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) objects into the collection at the specified position.

| Parameter   | Type                                                                                            | Description                                                                                                                                                                                                                                    |
| ----------- | ----------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **index**   | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)                                     | The position at which to insert the rows.                                                                                                                                                                                                      |
| **newRows** | [DataGridViewRow\[\]](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) | An array of [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) objects to add to the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*newRows* is null.
* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*index* is less than zero or greater than the number of rows in the collection.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*newRows* contains only one row, and the row it contains has more cells than there are columns in the control.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)\
  Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.

### ![](/files/lzopMboA31bVq8UIcbT3) OnCollectionChanged(action, element, recreateNewRow)

Fires the [CollectionChanged](#collectionchanged) event.

| Parameter                                           | Type                                                                                                         | Description                                                                                                                                                           |
| --------------------------------------------------- | ------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **action**                                          | [CollectionChangeAction](https://docs.microsoft.com/dotnet/api/system.componentmodel.collectionchangeaction) | One of [CollectionChangeAction](https://docs.microsoft.com/dotnet/api/system.componentmodel.collectionchangeaction) indicating the reason the collection has changed. |
| **element**                                         | [Object](https://docs.microsoft.com/dotnet/api/system.object)                                                | The element that was added or removed from the collection, or null.                                                                                                   |
| **recreateNewRow** ![](/files/1vGqtbG2j637vQ4ROWOf) | [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean)                                              | Indicates whether the grid should re-create the new automatic row.                                                                                                    |

### ![](/files/hsR4ok3152WyAf8J2C1u) Remove(row)

Removes the row from the collection.

| Parameter | Type                                                                                        | Description                                                                                                                                 |
| --------- | ------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| **row**   | [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) | The row to remove from the [DataGridViewRowCollection](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowcollection.md). |

**Throws:**

* [ArgumentNullException](https://docs.microsoft.com/dotnet/api/system.argumentnullexception)*row* is null.
* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception)*row* is not contained in this collection; or *row* is a shared row.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.

### ![](/files/hsR4ok3152WyAf8J2C1u) RemoveAt(index)

Removes the [DataGridViewRow](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrow.md) at the specified position from the collection.

| Parameter | Type                                                        | Description                        |
| --------- | ----------------------------------------------------------- | ---------------------------------- |
| **index** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The position of the row to remove. |

**Throws:**

* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception)*index* is less than zero and greater than the number of rows in the collection minus one.
* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception)\
  The associated [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control is performing one of the following actions that temporarily prevents new rows from being added:
* Selecting all cells in the control.
* Clearing the selection.\
  Or this method is being called from a handler for one of the following [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) events:
* [CellEnter](/api/wisej.web/lists-and-grids/datagridview.md#cellenter)
* [CellLeave](/api/wisej.web/lists-and-grids/datagridview.md#cellleave)
* [CellValidating](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidating)
* [CellValidated](/api/wisej.web/lists-and-grids/datagridview.md#cellvalidated)
* [RowEnter](/api/wisej.web/lists-and-grids/datagridview.md#rowenter)
* [RowLeave](/api/wisej.web/lists-and-grids/datagridview.md#rowleave)
* [RowValidated](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidated)
* [RowValidating](/api/wisej.web/lists-and-grids/datagridview.md#rowvalidating)

Or the [DataSource](/api/wisej.web/lists-and-grids/datagridview.md#datasource) property of the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) is not null.\
Or the [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) has no columns.

## Events

### ![](/files/hsR4ok3152WyAf8J2C1u) CollectionChanged

[CollectionChangeEventHandler](https://docs.microsoft.com/dotnet/api/system.componentmodel.collectionchangeeventhandler) Fired when the collection changes.


---

# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

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