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HtmlInputImage.ServerClick Event

Occurs on the server when the user clicks an HtmlInputImage control.

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

public event ImageClickEventHandler ServerClick
<asp:HtmlInputImage OnServerClick="ImageClickEventHandler" />

The ServerClick event is raised when the user clicks an HtmlInputImage control.

For more information about handling events, see Consuming Events.

The following code example demonstrates how to specify and code a handler for the ServerClick event to determine the coordinates where the user clicks the HtmlInputImage control.

<%@ 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">
<script runat="server">

  protected void  ImageBtn_Click(object sender, ImageClickEventArgs e)
  {

    // Write the click coordinates to the Span1 element.
    Span1.InnerText = "You clicked at (" + e.X.ToString() +
                      ", " + e.Y.ToString() + ").";
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" > 
<head runat="server">
    <title>Click the Image </title>
</head>
<body>

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

      <h3>Click the Image </h3>

      <input type="image"
             alt="Image Alternate Text"
             src="Image1.jpg" 
             onserverclick="ImageBtn_Click"
             runat="server" id="Image1"/>

      <br />
      <br />

      <span id="Span1" 
            runat="server"/>

   </form>

</body>
</html>
   
<%@ 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">
<script runat="server">

  void ImageBtn_Click(Object sender, ImageClickEventArgs e)
  {

    // Display the coordinates of the position where the image 
    // was clicked. 
    Span1.InnerText = "You clicked at (" + e.X.ToString() +
                      ", " + e.Y.ToString() + ").";

  }

  void Page_Load(Object sender, EventArgs e)
  {

    // Create an EventHandler delegate for the method you want to 
    // handle the event, and then add it to the list of methods called
    // when the event is raised.
    Image1.ServerClick += new ImageClickEventHandler(this.ImageBtn_Click);

  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>HtmlInputImage ServerClick Example </title>
</head>
<body>

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

      <h3>HtmlInputImage ServerClick Example </h3>

      <input type="image"
             id="Image1"
             src="Image.jpg" 
             alt="Image"
             runat="server"/>

      <br />

      <span id="Span1" 
            runat="server"/>

   </form>

</body>
</html>

.NET Framework

Supported in: 4.6, 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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