如何使用Web浏览器对象在后台工作在C＃ [英] How to use web browser object in background worker in C#

问题描述

我有低于code问题。有没有人告诉它为什么不工作的BackgroundWorker，我怎么能解决这个问题。

 字符串地址=我的网址
            webBrowser.Navigate（新的URI（地址））;
            做
            {
                Application.DoEvents（）;
            }而（webBrowser.ReadyState = WebBrowserReadyState.Complete！）;
 

解决方案

没有！

您更好地打开一个新的线程，并从那里指示web浏览器

Application.DoEvents（）是有点儿邪恶。

下面是如何开始

  System.Threading.Thread T =新System.Threading.Thread（（）=＆GT;
{
    yourWebBrowser.Navigate（http://Google.com）;
}）;t.ApartmentState = System.Threading.ApartmentState.STA;
t.Start（）;
 

要获得通知，该页面已被加载，你可以订阅DocumentCompleted事件像这样：

  yourWebBrowser.DocumentCompleted + = WebBrowserDocumentCompleted;无效WebBrowserDocumentCompleted（对象发件人，System.Windows.Forms.WebBrowserDocumentCompletedEventArgs E）
{
    抛出新NotImplementedException（）;
}
 

I have problem with code below. Can some one tell why it doesn't work in BackgroundWorker and how can i solve this problem

  string address = "My URL";
            webBrowser.Navigate(new Uri(address));
            do
            {
                Application.DoEvents();
            } while (webBrowser.ReadyState != WebBrowserReadyState.Complete);

解决方案

No!!

You better open a new thread and instruct the WebBrowser from there

Application.DoEvents() is kinda evil.

Here is how you can start

System.Threading.Thread t = new System.Threading.Thread(() =>
{
    yourWebBrowser.Navigate("http://Google.com");
});

t.ApartmentState = System.Threading.ApartmentState.STA;
t.Start();

To get notified that the page has been loaded you can subscribe to the DocumentCompleted event as so:

yourWebBrowser.DocumentCompleted += WebBrowserDocumentCompleted;

void WebBrowserDocumentCompleted(object sender, System.Windows.Forms.WebBrowserDocumentCompletedEventArgs e)
{
    throw new NotImplementedException();
}

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