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ListView.OnItemCommand Method

Raises the ItemCommand event.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)

abstract OnItemCommand : 
        e:ListViewCommandEventArgs -> unit  
override OnItemCommand : 
        e:ListViewCommandEventArgs -> unit

The ItemCommand event is raised when a button in an item template is clicked, but before the command is executed. This enables you to perform a custom routine in response to the supplied CommandName or CommandArgument value whenever this event occurs.

The OnItemCommand method is called by the ListView control to raise the ItemCommand event. It is typically used by control developers when extending the ListView class.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnItemCommand method also enables derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

When you override OnItemCommand in a derived class, call the base class's OnItemCommand method so that registered delegates receive the event.

.NET Framework

Supported in: 4.5, 4, 3.5

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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