瀏覽器的錯誤處理

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            
}

參考文獻

Stackoverflow:Can I detect errors while using a .Net WebBrowser control?
- http://stackoverflow.com/questions/368612/can-i-detect-errors-while-using-a-net-webbrowser-control

page revision: 2, last edited: 19 Dec 2011 08:06

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作者：陳鍾誠

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