C# 打印webBrowser打开的页面

 this.webBrowser.Navigate(webBrowserUrl, tagerFrameName, postBuffer, heads);
this.webBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WebBrowser_DocumentCompleted);

void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
        WebBrowser webBrowser = (WebBrowser)sender;
      //WebBrowserReadyState.Interactive 和WebBrowserReadyState.Complete 时都会触发DocumentCompleted
       if (webBrowser.ReadyState == WebBrowserReadyState.Complete)
        {
              //webBrowser1.DocumentText 获取的内容中文会乱码
              //获取文档编码
              Encoding encoding = Encoding.GetEncoding(webBrowser.Document.Encoding);
              StreamReader stream = new StreamReader(webBrowser.DocumentStream, encoding);
              File.WriteAllText(@"D:\mzwu.txt", stream.ReadToEnd(), Encoding.Unicode);
              MessageBox.Show(DateTime.Now.ToString() + ": 页面内容获取完成! ");
          }
 }