Can I detect errors while using a .Net WebBrowser control?

I have an .Net Froms application that displays web pages through a WebBrowser control.

Is there anyway that I can detect if the control shows a 'Page not found' or 'Cannot display webpage' error? There doesn't seem to be any error event handlers.

From stackoverflow

• The WebBrowser windows forms control is wrapper around Internet Explorer and it doesn't expose all the functionality of the underlying ActiveX control and particularly the NavigateError event. Here's a workaround:

  First add reference to SHDocVw.dll to your project (COM tab of Add Reference window). Then you can do the following to capture errors:

  private void button1_Click(object sender, EventArgs e)
  {
      SHDocVw.WebBrowser instance = (SHDocVw.WebBrowser)webBrowser1.ActiveXInstance;
      instance.NavigateError += new SHDocVw.DWebBrowserEvents2_NavigateErrorEventHandler(instance_NavigateError);
      webBrowser1.Navigate("http://www.google.com/foo");
  }
  
  void instance_NavigateError(object pDisp, ref object URL, ref object Frame, ref object StatusCode, ref bool Cancel)
  {
      // Do whatever you want with the error            
  }
  

  tpower : Thanks, that's perfect! Nice answer.

• Thanks this is great!

  The architect of System.Windows.Forms.WebBrowser must be a very optimistic person.

• I found another way to solve this without setting a reference to the SHDocVw dll.

  See web browser CreateSink method on MSDN.