private void SubmitData()
    {

        try {
            string user = textBox1.Text;
            string pass = textBox2.Text;

            ASCIIEncoding encoding = new ASCIIEncoding();
            string auth = "admin:admin";
            string u = "admin";
            string p = "admin";

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

         WebRequest request = WebRequest.Create("http://10.115.1.3/openmn/test");

        request.Credentials= new NetworkCredential(u,p);

            request.Method = "POST";
            //POST /openmn/nb/NBProvisioningWebService HTTP/1.1
            request.Headers.Add("Accept-Encoding:gzip,deflate");
            request.ContentType = "text/xml;charset="utf-8"";
      //      request.ContentType = "application/x-www-form-urlencoded";
            request.Headers.Add("SOAPAction", "getSubscriberRequest");
            request.ContentLength = data.Length;
       //     request.Headers.Add("HOST", "10.115.1.3");

            request.Headers.Add("Accept-Charset:utf-8;");

     //   request.Headers.Add("user-agent", "Apache-HttpClient/4.1.1");
      //      request.Headers.Add("Authorization", auth);
            Stream stream = request.GetRequestStream();
            stream.Write(data, 0, data.Length);
            stream.Close();

            WebResponse response = request.GetResponse();
            stream = response.GetResponseStream();

            StreamReader rd = new StreamReader(stream);

            this.output_txt.Text = rd.ReadToEnd();
            rd.Close();
            stream.Close();
        }
        catch (Exception ex)
        {
            MessageBox.Show("Error : "  + ex.Message);
        }

    }