ASP.NET Tutorial/HTML Controls/Image

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Detect click on an image (C#)

   <source lang="csharp">

File: Default.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="ImageTest" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"

"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">

   <title>Untitled Page</title>

</head> <body>

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

Click on the Image

     <input type="image"
            src="http://www.nfex.ru/style/logo.png" 
            ID="ImgButton"
            runat="server" OnServerClick="ImgButton_ServerClick" />
     
<div ID="Result" runat="server"/>
   </form>

</body> </html> File: Default.aspx.cs

using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class ImageTest : System.Web.UI.Page {

 protected void ImgButton_ServerClick(Object sender, ImageClickEventArgs e)
 {
   Result.InnerText = "You clicked at (" + e.X.ToString() + ", " + e.Y.ToString() + "). ";
   if ((e.Y < 100) && (e.Y > 20) && (e.X > 20) && (e.X < 275))
   {
     Result.InnerText += "You clicked on the button surface.";
   }
   else
   {
     Result.InnerText += "You clicked the button border.";
   }
       Response.Redirect("http://www.nfex.ru");
 }

}</source>