ListControl::OnSelectedIndexChanged Method
Raises the SelectedIndexChanged event. This allows you to provide a custom handler for the event.
Assembly: System.Web (in System.Web.dll)
Parameters
- e
- Type: System::EventArgs
A System::EventArgs that contains the event data.
The SelectedIndexChanged event is raised when the selection from the list control changes between posts to the server.
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A list control must persist some values between posts to the server for this event to work correctly. Be sure that view state is enabled for the list control. |
Raising an event invokes the event handler through a delegate. For more information, see Consuming Events.
The OnSelectedIndexChanged method also allows 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 InheritorsWhen overriding OnSelectedIndexChanged in a derived class, be sure to call the base class's OnSelectedIndexChanged method so that registered delegates receive the event.
The following example demonstrates how to specify and code a handler for the SelectedIndexChanged event to display the selection made by the user.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
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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