# JavaScript.ClientEventCollection Namespace: **Wisej.Web** Assembly: **Wisej.Framework** (3.0.0.0) Represents a collection of JavaScript events and their corresponding handler code. {% tabs %} {% tab title="C#" %} ```csharp public class ClientEventCollection : IList, ICollection, IEnumerable, IList, ICollection, IEnumerable ``` {% 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 ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)ClientEventCollection() ## Properties ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)Count [Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32): Returns the number of items in the collection. ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)Item(index) [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent): Returns the [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) element at the specified *index* . ## Methods ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)Add(item) Adds the [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) instance to the collection. | Parameter | Type | Description | | --------- | --------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- | | **item** | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) item to add to the collection. | ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)Clear() Removes all the [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) items from the collection. ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)Contains(item) Checks whether the specified *item* exists in the collection. | Parameter | Type | Description | | --------- | --------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------ | | **item** | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) items to find in the collection. | **Returns:** [Boolean](https://docs.microsoft.com/en-us/dotnet/api/system.boolean). True of the collection contains the specified *item* . ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)IndexOf(item) Returns the position of the specified *item* in the collection. | Parameter | Type | Description | | --------- | --------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- | | **item** | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) item to locate in the collection. | **Returns:** [Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32). The index of the specified *item* or -1 if not found. ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)Insert(index, item) Inserts the *item* into the collection at the specified *index* . | Parameter | Type | Description | | --------- | --------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------- | | **index** | [Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32) | Position where to insert the *item* . | | **item** | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) item to insert into the collection. | ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)Remove(item) Removes the *item* from the collection. | Parameter | Type | Description | | --------- | --------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | | **item** | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) | [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) instance to remove from the collection. | **Returns:** [Boolean](https://docs.microsoft.com/en-us/dotnet/api/system.boolean). True of the specified *item* was found and removed from the collection. ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)RemoveAt(index) Removes the [ClientEvent](https://docs.wisej.com/api/v3.0/wisej.web/general/control/wisej.web.javascript.clientevent) item at the location *index* . | Parameter | Type | Description | | --------- | ----------------------------------------------------------------- | --------------------------------------------------- | | **index** | [Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32) | Position of the item to remove from the collection. | ## Events ### ![](https://2647619304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHOivImCoV8KSJbQyp6QI%2Fuploads%2Fgit-blob-2389c55cd19719a73a5ae98e1528c8dc8525cc35%2Finstance.png?alt=media)CollectionChanged [CollectionChangeEventHandler](https://docs.microsoft.com/en-us/dotnet/api/system.componentmodel.collectionchangeeventhandler) Fired when the collection has changed.