ASP.NET Tutorial/HTML Controls/Image

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Detect click on an image (C#)

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">
    <div>
    
      <h1>Click on the Image </h1>
      <input type="image"
             src="http://www.nfex.ru/style/logo.png" 
             ID="ImgButton"
             runat="server" OnServerClick="ImgButton_ServerClick" />
      <br />
      <div ID="Result" 
            runat="server"/>
    </div>
    </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");
  }
}
Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/HTML_Controls/Image&oldid=3273»