ASP.NET is an open-source, server-side web application framework designed for web development to produce dynamic web pages. It was developed by Microsoft to allow programmers to build dynamic websites, applications and services. Wikipedia
In this post, I will show how to export a Webpage as an image in asp.net.
- Start Visual Studio 2005.
- Create a Web site.
- Add Reference of
System.Windows.Forms - Add
AspCompat="true"in page attribute - Verify that the following namespaces are included in the ExportWebPageToImage.c
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.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
Here is complete source code
<%@ Page Language="C#" AspCompat="true" AutoEventWireup="true" CodeFile="ExportWebPageToImage.aspx.cs"
Inherits="ExportWebPageToImage" %>
<!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 runat="server">
<title></title>
<style type="text/css">
.style1
{
width: 100%;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtUrl" runat="server" Width="208px"></asp:TextBox><br />
<asp:Button ID="btnConvert" runat="server" Text="Convert Page To Image" OnClick="btnConvert_Click" />
</div>
</form>
</body>
</html>
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.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
public partial class ExportWebPageToImage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
public System.Drawing.Bitmap CaptureWebPage(string URL)
{
// create a hidden web browser, which will navigate to the page
System.Windows.Forms.WebBrowser web = new System.Windows.Forms.WebBrowser();
// we don't want scrollbars on our image
web.ScrollBarsEnabled = false;
// don't let any errors shine through
web.ScriptErrorsSuppressed = true;
// let's load up that page!
web.Navigate(URL);
// wait until the page is fully loaded
while (web.ReadyState != WebBrowserReadyState.Complete)
System.Windows.Forms.Application.DoEvents();
System.Threading.Thread.Sleep(1500); // allow time for page scripts to update
// the appearance of the page
// set the size of our web browser to be the same size as the page
int width = web.Document.Body.ScrollRectangle.Width;
int height = web.Document.Body.ScrollRectangle.Height;
web.Width = width;
web.Height = height;
// a bitmap that we will draw to
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(width, height);
// draw the web browser to the bitmap
web.DrawToBitmap(bmp, new System.Drawing.Rectangle(0, 0, width, height));
return bmp; // return the bitmap for processing
}
protected void btnConvert_Click(object sender, EventArgs e)
{
Bitmap bitmap = new Bitmap(CaptureWebPage(txtUrl.Text));
Response.ContentType = "image/jpeg";
bitmap.Save(Response.OutputStream, ImageFormat.Jpeg);
bitmap.Dispose();
bitmap.Dispose();
Response.End();
}
}