ImageButton.Click Event

Occurs when the ImageButton is clicked.

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

public event ImageClickEventHandler Click
<asp:ImageButton OnClick="ImageClickEventHandler" />

The Click event is raised when the ImageButton control is clicked.

NoteNote

This event causes the page to be posted back to the server.

For more information about handling events, see How to: Consume Events in a Web Forms Application.

TopicLocation
How to: Determine Coordinates in an ImageButton Web Server ControlBuilding ASP .NET Web Applications
How to: Determine Coordinates in an ImageButton Web Server ControlBuilding ASP .NET Web Applications
How to: Determine Coordinates in an ImageButton Web Server ControlBuilding ASP .NET Web Applications in Visual Studio

The following example demonstrates how to specify and code a handler for the Click event to display the coordinates at which the user clicks the image.

NoteNote

The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.

<%@ Page Language="C#" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>ImageButton Sample</title>
<script language="C#" runat="server">

      void ImageButton_Click(object sender, ImageClickEventArgs e) 
      {
         Label1.Text = "You clicked the ImageButton control at the coordinates: (" + 
                       e.X.ToString() + ", " + e.Y.ToString() + ")";
      }

   </script>

</head>

<body>

   <form id="form1" runat="server">

      <h3>ImageButton Sample</h3>

      Click anywhere on the image.<br /><br />

      <asp:ImageButton id="imagebutton1" runat="server"
           AlternateText="ImageButton 1"
           ImageAlign="left"
           ImageUrl="images/pict.jpg"
           OnClick="ImageButton_Click"/>

      <br /><br />

      <asp:label id="Label1" runat="server"/>

   </form>

</body>
</html>

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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