visual-studio-2010 - how to debug asynccallback method

Question

I mean for example AsyncGetter method.

req = (HttpWebRequest) WebRequest.Create("http://www.google.com/ig/api?weather=" + city + "&hl=" + lang);
req.Method = "GET";
req.BeginGetResponse(AsyncGetter, req);

When I use F11 it doesn't enter this method.

Answer 1

在您的异步回调方法中放置另一个断点，此时无需按 F11（您可以在此时按 F5）并让该方法执行，一旦您得到响应，它将落到您在回调方法中设置的断点。

编辑：

req.BeginGetResponse(new AsyncCallback(AsyncGetter), req);

异步获取器（）：

private void AsyncGetter(IAsyncResult result){
    HttpWebRequest req = (HttpWebRequest)result.AsyncState;
    ...
}