string strTitle = TextBox1.Text;
string strDesc = TextBox2.Text;
Encoding encoding = Encoding.GetEncoding(""GB2312"");
string postData = ""Title="" + strTitle;
string strUrl = ""http://xml.sz.luohuedu.net/HttpReceiveData.aspx"";
postData += (""&Desc="" + strDesc);
byte[] data = encoding.GetBytes(postData);
// 准备请求...
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(strUrl);
myRequest.Method = ""POST"";
myRequest.ContentType=""application/x-www-form-urlencoded"";
myRequest.ContentLength = data.Length;
Stream newStream=myRequest.GetRequestStream();
// 发送数据
newStream.Write(data,0,data.Length);
newStream.Close();