Bearbeiten

Freigeben über

ImageClickEventHandler Delegate

  • Reference

Definition

Namespace:
System.Web.UI
Assembly:
System.Web.dll

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

public delegate void ImageClickEventHandler(System::Object ^ sender, ImageClickEventArgs ^ e);
public delegate void ImageClickEventHandler(object sender, ImageClickEventArgs e);
type ImageClickEventHandler = delegate of obj * ImageClickEventArgs -> unit
Public Delegate Sub ImageClickEventHandler(sender As Object, e As ImageClickEventArgs)

Parameters

sender
Object

The server control that is the source of the event.

e
ImageClickEventArgs

An ImageClickEventArgs that contains event data.

Examples

// 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() + ")";
}

' Define the event handler that uses coordinate information through ImageClickEventArgs.
Sub ImageButton_Click(sender As Object, e As ImageClickEventArgs) 
   Label1.Text = "You clicked the ImageButton control at the coordinates: (" & _ 
                 e.X.ToString() & ", " & e.Y.ToString() & ")"
End Sub

Remarks

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 Handling and Raising Events. For information about how to raise events, see Handling and Raising Events.

Extension Methods

GetMethodInfo(Delegate)

Gets an object that represents the method represented by the specified delegate.

Applies to

See also