aspx does not contain a definition for this.Bounds - asp.net

Question

hello everyone i am writing a program which captures a part of the screen when a button is clicked. Below is my code
**default.aspx**
<%# Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
CodeBehind="Default.aspx.cs" Inherits="_9marchexp._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<h2>
Welcome to ASP.NET!
</h2>
<p>
To learn more about ASP.NET visit www.asp.net.
</p>
<p>
You can also find <a href="http://go.microsoft.com/fwlink/?LinkID=152368&clcid=0x409"
title="MSDN ASP.NET Docs">documentation on ASP.NET at MSDN</a>.
</p>
<p>
</p>
<p>
</p>
<p>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
</p>
</asp:Content>
and
default.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Data;
using System.Runtime.InteropServices;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
namespace _9marchexp
{
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
Rectangle formRect = this.Bounds; // saving information aout your window in formRect <br/>
// (height, width, x, y, etc
using (Bitmap bitm = new Bitmap(formRect.Width, formRect.Height)) // creating new bitmap of the same <br/>
// height and width as our own window
{
using (Graphics graphic = Graphics.FromImage(bitm))
{
graphic.CopyFromScreen(new Point(formRect.Left, formRect.Top), Point.Empty, formRect.Size);
}
bitm.Save("C:\\Users\\xxxx\\Desktop\\myscreenshot.jpg", ImageFormat.Jpeg); // saving the bitmap bile to destination dir. <br/>
// with specified name
}
}
}
}
however the thing is when i execute the code an error message is displayed
***'_9marchexp._Default' does not contain a definition for 'Bounds' and no extension method 'Bounds' accepting a first argument of type '_9marchexp._Default' could be found (are you missing a using directive or an assembly reference?)***
How to correct that, can someone help me??
also if i replace this.Bounds with Screen.PrimaryScreen.Bounds the code runs perfectly but the screenshot of the whole screen is taken which i don't want.

Answer 1

It is impossible to capture the screen of the browser, or of the user, or of the server, or of the desktop or what ever, using the code behind.
A solution that read a page and print it to an image can be found here
Convert webpage to image from ASP.NET