Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All
Expand Minimize

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
)

Parameters

sender
Type: System.Object

The server control that is the source of the event.

e
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: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
Show:
© 2015 Microsoft