ImageMap::OnClick Method
Namespace: System.Web.UI.WebControls
Assembly: System.Web (in System.Web.dll)
Parameters
- e
- Type: System.Web.UI.WebControls::ImageMapEventArgs
An argument of type ImageMapEventArgs that contains the event data.
The Click event is raised when a HotSpot object in an ImageMap control is clicked. To allow a HotSpot to raise the Click event, you must first set either the HotSpotMode property on the ImageMap control or the HotSpotMode property on the HotSpot object to HotSpotMode.Postback.
Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.
The OnClick 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 OnClick in a derived class, be sure to call the base class's OnClick method so that registered delegates receive the event.
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.