> For the complete documentation index, see [llms.txt](https://docs.wisej.com/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wisej.com/api/wisej.web/general/control/wisej.web.javascript.clienteventcollection.md).

# JavaScript.ClientEventCollection

Namespace: **Wisej.Web**

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

Represents a collection of JavaScript events and their corresponding handler code.

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

```csharp
public class ClientEventCollection : IList, ICollection, IEnumerable, IList<ClientEvent>, ICollection<ClientEvent>, IEnumerable<ClientEvent>
```

{% endtab %}

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

```visual-basic
Public Class ClientEventCollection
    Inherits IList
    Implements ICollection, IEnumerable, IList(Of ClientEvent), ICollection(Of ClientEvent), IEnumerable(Of ClientEvent)
```

{% endtab %}
{% endtabs %}

## Constructors

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

Initializes a new instance of [ClientEventCollection](/api/wisej.web/general/control/wisej.web.javascript.clienteventcollection.md).

## Properties

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

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

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

[ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent): Returns the [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) element at the specified *index* .

## Methods

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

Adds the [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) instance to the collection.

| Parameter | Type                                                              | Description                                                                                      |
| --------- | ----------------------------------------------------------------- | ------------------------------------------------------------------------------------------------ |
| **item**  | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) item to add to the collection. |

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

Removes all the [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) items from the collection.

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

Checks whether the specified *item* exists in the collection.

| Parameter | Type                                                              | Description                                                                                        |
| --------- | ----------------------------------------------------------------- | -------------------------------------------------------------------------------------------------- |
| **item**  | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) items to find in the collection. |

**Returns:** [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean). True of the collection contains the specified *item* .

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

Returns the position of the specified *item* in the collection.

| Parameter | Type                                                              | Description                                                                                         |
| --------- | ----------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- |
| **item**  | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) item to locate in the collection. |

**Returns:** [Int32](https://docs.microsoft.com/dotnet/api/system.int32). The index of the specified *item* or -1 if not found.

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

Inserts the *item* into the collection at the specified *index* .

| Parameter | Type                                                              | Description                                                                                           |
| --------- | ----------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
| **index** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32)       | Position where to insert the *item* .                                                                 |
| **item**  | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) item to insert into the collection. |

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

Removes the *item* from the collection.

| Parameter | Type                                                              | Description                                                                                               |
| --------- | ----------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- |
| **item**  | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) | [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) instance to remove from the collection. |

**Returns:** [Boolean](https://docs.microsoft.com/dotnet/api/system.boolean). True of the specified *item* was found and removed from the collection.

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

Removes the [ClientEvent](/api/wisej.web/extenders/javascript.md#clientevent) item at the location *index* .

| Parameter | Type                                                        | Description                                         |
| --------- | ----------------------------------------------------------- | --------------------------------------------------- |
| **index** | [Int32](https://docs.microsoft.com/dotnet/api/system.int32) | Position of the item to remove from the collection. |

## Events

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

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


---

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