This documentation is archived and is not being maintained.

ImageClickEventHandler Delegate

Represents the method that handles any events that are raised when a user clicks an image-based ASP.NET server control.

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

public delegate void ImageClickEventHandler(
	Object sender,
	ImageClickEventArgs e


Type: System.Object
The server control that is the source of the event.
Type: System.Web.UI.ImageClickEventArgs
An ImageClickEventArgs that contains event data.

This delegate defines the required signature for all click events raised when a user clicks an image-based ASP.NET server control. You must use the signature defined by this delegate for any OnServerClick event handlers that you create for an HtmlInputImage server control or any OnClick event handlers that you create for an ImageButton Web server control.

If you create a custom image-based ASP.NET server control that users can click, use this delegate to define the events associated with that user action.

For more information about delegates and how they interact with events, see Events and Delegates. For information about how to raise events, see Raising an Event.

// Define the event handler that uses coordinate information through ImageClickEventArgs.
void ImageButton_Click(object sender, ImageClickEventArgs e) 
   Label1.Text = "You clicked the ImageButton control at the coordinates: (" + 
                 e.X.ToString() + ", " + e.Y.ToString() + ")";

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

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.