How to pass string value from Public Class to public partial class in C#

Hi,
     I am having one Method like below in public class,I just need to retrieve one string value(res[0])in another public partial class(page class).
Any help could be greatly Thankful.

public SMSResultStatusEnum SendSMS(StringBuilder mobilenumber, string message, string Language)
        {
            string Unicode;
            string SMSUsername = AppSettingsManager.Instance.SMSUsername;
            string SMSPassword = AppSettingsManager.Instance.SMSPassword;
            string SMSSenderID = AppSettingsManager.Instance.SMSSenderID;
            string correctedmobilenumber = CorrectMobileNumber(mobilenumber);

            ///@todo: REMOVE THIS IN PRODUCTION!
            //return
            //    SMSResultStatus.SUCCESSFUL;

            if (Language.ToLower() == "english")
            {
                Unicode = "E";
            }
            else
            {
                Unicode = "U";
                message = ToHexString(message);
            }

            //Uri uri = new Uri("http://59.162.167.52/api/MessageCompose?admin=imran@instareach.com&user=" + SMSUsername + ":" + SMSPassword + "&senderID=" + SMSSenderID + "&receipientno=" + correctedmobilenumber + "&msgtxt=" + message + "&state=4");
            Uri uri = new Uri("http://183.81.161.84:13016/cgi-bin/sendsms?username=" + SMSUsername + "&password=" + SMSPassword + "&to=" + correctedmobilenumber + "&from=" + SMSSenderID + "&text=" + message);
            
            try
            {
                HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(uri);

                HttpWebResponse httpResponse = (HttpWebResponse)(httpReq.GetResponse());
                StreamReader reader = new StreamReader(httpResponse.GetResponseStream());
                string tmp = reader.ReadToEnd();
                string[] res = tmp.Split('&');
                //string Result = tmp.Substring(0, 8) + "".ToString();
                httpResponse.Close();
                //SMSResultStatusEnum statusCode = (SMSResultStatusEnum)SMSResultStatusEnum.Successfull;
                
                
                if (res[0] == "status=0")
                {
                    SMSResultStatusEnum statusCode = (SMSResultStatusEnum)SMSResultStatusEnum.Successfull;
                    return statusCode;
                }
                else if (res[0] == "status=1")
                {
                    SMSResultStatusEnum statusCode = (SMSResultStatusEnum)SMSResultStatusEnum.AuthorisationFailed;
                    return statusCode;

                }

                else if (res[0] == "status=28")
                {
                    SMSResultStatusEnum statusCode = (SMSResultStatusEnum)SMSResultStatusEnum.InvalidDestinationNumber;
                    return statusCode;

                }
                else
                {

                    SMSResultStatusEnum statusCode = (SMSResultStatusEnum)SMSResultStatusEnum.OtherProblems;
                    return statusCode;
                }
                //return statusCode;
            }
            catch
            {
                return SMSResultStatusEnum.OtherProblems;
            }
        }