WP7上HttpWebRequest的用法

1.创建request对象

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(new Uri("http://www.cnblogs.com/"));

request.BeginGetResponse(ResponseCallback,request);

2.

 void ResponseCallback(IAsyncResult result)

        {

            try

            { 

            HttpWebRequest request = (HttpWebRequest)(result.AsyncState);



            StreamReader read = new StreamReader(request.EndGetResponse(result).GetResponseStream());

            string data = read.ReadToEnd();

            string dt = data.Substring(0,1024);

            Dispatcher.BeginInvoke(() => {

                MessageBox.Show(dt);

            });

            }

            catch 

            {

                Dispatcher.BeginInvoke(() =>

                {

                    MessageBox.Show("失败");

                });

            }

        }