怎么样能够让progressbar与webbrowser关联起来？

private void Form1_Load(object sender, EventArgs e)

{

Uri url = new Uri("http://blog.csdn.net/long102");

webBrowser1.Url = url;

webBrowser1.ProgressChanged += new WebBrowserProgressChangedEventHandler(webBrowser1_ProgressChanged);

}

private void webBrowser1_ProgressChanged(object sender, WebBrowserProgressChangedEventArgs e)

{

progressBar1.Visible = true;

if ((e.CurrentProgress > 0) && (e.MaximumProgress > 0))

{

progressBar1.Maximum = Convert.ToInt32(e.MaximumProgress);

progressBar1.Step = Convert.ToInt32(e.CurrentProgress);

progressBar1.PerformStep();

}

else if (webBrowser1.ReadyState == WebBrowserReadyState.Complete)

{

progressBar1.Value = 0;

progressBar1.Visible = false;

}

}

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