HttpWebRequest[post/get]

Post

 protected void Button1_Click(object sender, EventArgs e)
    {
        string strId = "Button";
        string strPassword = "123456";

        ASCIIEncoding encoding = new ASCIIEncoding();
        string postData = "__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%2FwEPDwULLTE5MjM1NTUxODdkZN5XxVrQd%2FknWoWN37VZr71vQgKn&__PREVIOUSPAGE=wVE_UGSoWjG65-rQk8wSB2QnduBi7s5pGYGv9nl2ZQU1&__EVENTVALIDATION=%2FwEWBAL8nqGpAwLs0bLrBgK7q7GGCAKM54rGBtY9qZGqnqJlQWAFDV3VO%2B0ab8qq&Button2=" + strId;
        postData += ("&TextBox1=" + strPassword);

        byte[] data = encoding.GetBytes(postData);

        // Prepare web request   
        HttpWebRequest myRequest = HttpWebRequest.Create("http://localhost:1222/NormalProjectSite/TargetPost.aspx") as HttpWebRequest;


        myRequest.Method = "POST";
        myRequest.ContentType = "application/x-www-form-urlencoded";
        myRequest.ContentLength = data.Length;
        Stream newStream = myRequest.GetRequestStream();

        // Send the data.   
        newStream.Write(data, 0, data.Length);
        newStream.Close();

        // Get response   
        HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
        StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.Default);
        string content = reader.ReadToEnd();