ImageMap.OnClick(ImageMapEventArgs) Method
Definition
Important
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protected:
virtual void OnClick(System::Web::UI::WebControls::ImageMapEventArgs ^ e);protected virtual void OnClick (System.Web.UI.WebControls.ImageMapEventArgs e);abstract member OnClick : System.Web.UI.WebControls.ImageMapEventArgs -> unit
override this.OnClick : System.Web.UI.WebControls.ImageMapEventArgs -> unitProtected Overridable Sub OnClick (e As ImageMapEventArgs)Parameters
An argument of type ImageMapEventArgs that contains the event data.
Remarks
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 Handling and Raising Events.
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 Inheritors
When overriding OnClick(ImageMapEventArgs) in a derived class, be sure to call the base class's OnClick(ImageMapEventArgs) method so that registered delegates receive the event.
