How do I create an image of a webpage and save the image to my server using .net? - asp.net

Question

I have a page that dynamically generates a small html page containing 1 small table w/text. I want to be able to take a picture (png preferable) of that page and save it to my server.
I was previously using a 3rd party solution (ABCdrawHTML2), but I have changed servers and this one does not have it. Is there a way to do it without 3rd party solutions?

Answer 1

This is how I do it using the Windows.Forms WebBrowser:
public class WebSiteThumbnailImage
{
string m_Url;
int m_BrowserWidth, m_BrowserHeight, m_ThumbnailWidth, m_ThumbnailHeight;
Bitmap m_Bitmap = null;
public WebSiteThumbnailImage(string url, int browserWidth, int browserHeight, int thumbnailWidth, int thumbnailHeight)
{
m_Url = url;
m_BrowserWidth = browserWidth;
m_BrowserHeight = browserHeight;
m_ThumbnailWidth = thumbnailWidth;
m_ThumbnailHeight = thumbnailHeight;
}
public Bitmap GenerateWebSiteThumbnailImage()
{
Thread m_thread = new Thread(new ThreadStart(_GenerateWebSiteThumbnailImage));
m_thread.SetApartmentState(ApartmentState.STA);
m_thread.Start();
m_thread.Join();
return m_Bitmap;
}
private void _GenerateWebSiteThumbnailImage()
{
WebBrowser m_WebBrowser = new WebBrowser();
m_WebBrowser.ScrollBarsEnabled = false;
m_WebBrowser.Navigate(m_Url);
m_WebBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WebBrowser_DocumentCompleted);
while (m_WebBrowser.ReadyState != WebBrowserReadyState.Complete)
Application.DoEvents();
m_WebBrowser.Dispose();
}
private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser m_WebBrowser = (WebBrowser)sender;
m_WebBrowser.ClientSize = new Size(this.m_BrowserWidth, this.m_BrowserHeight);
m_WebBrowser.ScrollBarsEnabled = false;
m_Bitmap = new Bitmap(m_WebBrowser.Bounds.Width, m_WebBrowser.Bounds.Height);
m_WebBrowser.BringToFront();
m_WebBrowser.DrawToBitmap(m_Bitmap, m_WebBrowser.Bounds);
m_Bitmap = (Bitmap)m_Bitmap.GetThumbnailImage(m_ThumbnailWidth, m_ThumbnailHeight, null, IntPtr.Zero);
}
}
To use this, at the appropriate place in your code-behind, do something like:
WebSiteThumbnailImage thumbnail = new WebSiteThumbnailImage(url, 1000, 1000, 200, 200);
Bitmap image = thumbnail.GenerateWebSiteThumbnailImage();
image.Save(filePath);