After Hosting my web application auto complete textbox is not working?

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ASP.NET

C#3.5

My asmx code is for two textboxes... those are specialization and location.
Now it is working in localhost but not working after hosting my domain...
anyone pls help me out... Thank You

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
[System.Web.Script.Services.ScriptService]

public class AutoCompleteWebService : System.Web.Services.WebService {

    public AutoCompleteWebService () {

        //Uncomment the following line if using designed components 
        //InitializeComponent(); 
    }

    [WebMethod]
      public string[] AutoCompleteAjaxRequest(string prefixText, int count)
        {

            List<string> ajaxDataCollection = new List<string>();
            DataTable _objdt = new DataTable();
            _objdt = GetDataFromDataBase(prefixText);
                if(_objdt.Rows.Count>0)
                {
                    for (int i = 0; i < _objdt.Rows.Count; i++)
                    {
                        ajaxDataCollection.Add(_objdt.Rows[i]["spename"].ToString());
                    }
                }
            return ajaxDataCollection.ToArray();
        }
    public DataTable GetDataFromDataBase(string prefixText)
    {
         
        string connectionstring = "Data Source=localhost;Initial Catalog=DoctorAppointment;User ID=sa;Password=abc;";
        DataTable _objdt = new DataTable();
        string querystring = "select spename from tbl_spe where spename like '%" + prefixText + "%';";
        SqlConnection _objcon = new SqlConnection(connectionstring);
        SqlDataAdapter _objda = new SqlDataAdapter(querystring, _objcon);
        _objcon.Open();
        _objda.Fill(_objdt);
        return _objdt;
    }
    [WebMethod]
    public string[] AutoCompleteAjaxRequestLoc(string prefixText, int count)
    {
        List<string> ajaxDataCollection = new List<string>();
        DataTable _objdt = new DataTable();
        _objdt = GetDataFromDataBase1(prefixText);
        if (_objdt.Rows.Count > 0)
        {
            for (int i = 0; i < _objdt.Rows.Count; i++)
            {
                ajaxDataCollection.Add(_objdt.Rows[i]["loc"].ToString());
            }
            
        }
        return ajaxDataCollection.ToArray();
    }
    public DataTable GetDataFromDataBase1(string prefixText)
    {
        string connectionstring = "Data Source=localhost;Initial Catalog=DoctorAppointment;User ID=sa;Password=abc;";
        DataTable _objdt = new DataTable();
        string querystring = "select loc from tbl_loc where loc like '%" + prefixText + "%';";
        SqlConnection _objcon = new SqlConnection(connectionstring);
        SqlDataAdapter _objda = new SqlDataAdapter(querystring, _objcon);
        _objcon.Open();
        _objda.Fill(_objdt);
        return _objdt;
    }