# DataGridViewHeaderCell

Namespace: **Wisej.Web**

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

* [DataGridViewElement](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewelement.md)
  * [DataGridViewCell](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewcell.md)
    * [DataGridViewHeaderCell](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewheadercell.md)

Contains functionality common to row header cells and column header cells.

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

```csharp
public class DataGridViewHeaderCell : DataGridViewCell
```

{% endtab %}

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

```visual-basic
Public Class DataGridViewHeaderCell
    Inherits DataGridViewCell
```

{% endtab %}
{% endtabs %}

## Constructors

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

Initializes a new instance of [DataGridViewHeaderCell](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewheadercell.md).

## Properties

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

[Boolean](https://docs.microsoft.com/dotnet/api/system.boolean):

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

[Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns a value indicating whether the cell is frozen.

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

[Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns a value indicating whether the header cell is read-only.

**Throws:**

* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception) An operation tries to set this property.

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

[Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns a value indicating whether the cell is resizable.

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

[Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns or sets whether the cell is selected.

**Throws:**

* [InvalidOperationException](https://docs.microsoft.com/dotnet/api/system.invalidoperationexception) This property is being set.

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

[Type](https://docs.microsoft.com/dotnet/api/system.type): Returns the type of the value stored in the cell.

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

[Boolean](https://docs.microsoft.com/dotnet/api/system.boolean): Returns a value indicating whether or not the cell is visible.

## Methods

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

Creates a copy of this cell.

**Returns:** [DataGridViewCell](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewcell.md). The cloned [DataGridViewHeaderCell](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewheadercell.md).

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

Returns a value indicating the current state of the cell as inherited from the state of its row or column.

| Parameter    | Type                                                        | Description                                                                                                                                                                              |
| ------------ | ----------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **rowIndex** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | The index of the row containing the cell or -1 if the cell is not a row header cell or is not contained within a [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control. |

**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 representing the current state of the cell.

**Throws:**

* [ArgumentException](https://docs.microsoft.com/dotnet/api/system.argumentexception) The cell is a row header cell, the cell is not contained within a [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control, and *rowIndex* is not -1.- or -The cell is a row header cell, the cell is contained within a [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control, and *rowIndex* is outside the valid range of 0 to the number of rows in the control minus 1.- or -The cell is a row header cell and *rowIndex* is not the index of the row containing this cell.
* [ArgumentOutOfRangeException](https://docs.microsoft.com/dotnet/api/system.argumentoutofrangeexception) The cell is a column header cell or the control's [TopLeftHeaderCell](/api/wisej.web/lists-and-grids/datagridview.md#topleftheadercell) and *rowIndex* is not -1.

### ![](/files/lzopMboA31bVq8UIcbT3) GetValue()

Returns the value of the cell.

**Returns:** [Object](https://docs.microsoft.com/dotnet/api/system.object). The value contained in the [DataGridViewHeaderCell](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewheadercell.md).

### ![](/files/lzopMboA31bVq8UIcbT3) SetValue(value)

Sets the value of the cell.

| Parameter | Type                                                          | Description            |
| --------- | ------------------------------------------------------------- | ---------------------- |
| **value** | [Object](https://docs.microsoft.com/dotnet/api/system.object) | The cell value to set. |

**Returns:** [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean). true if the value has been set; otherwise, false.

## Inherited By

| Name                                                                                                                  | Description                                                                                             |
| --------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- |
| [DataGridViewColumnHeaderCell](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewcolumnheadercell.md) | Represents a column header in a [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control. |
| [DataGridViewRowHeaderCell](/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewrowheadercell.md)       | Represents a row header of a [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md) control.    |

## Implements

| Name                                                                    | Description                                                                                                     |
| ----------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- |
| [IUserData](/api/wisej.web/interfaces/wisej.web.iuserdata.md)           | Provides access to the `UserData` and `Tag` properties associated to the component implementing this interface. |
| [ICommandSource](/api/wisej.web/interfaces/wisej.web.icommandsource.md) | Defines an object that can invoke a [Command](/api/wisej.web/interfaces/wisej.web.icommandsource.md#command).   |


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