private void FillServicelevel()
        {
            //objSQLdb = new SQLDB();
            objServicedb = new ServiceDB();
            DataTable dt = new DataTable();

            cbLevels.DataSource = null;
            try
            {
                dt = objServicedb.GetServiceLevels(CommonData.CompanyCode, CommonData.BranchType).Tables[0];
                //string strCmd = "SELECT desig_code,desig_name,ndesig_name FROM DESIG_MAS "+
                //                " WHERE dept_code IN(800000) ORDER BY ndesig_name ";
                //dt = objSQLdb.ExecuteDataSet(strCmd).Tables[0];
                if (dt.Rows.Count > 1)
                {
                    DataRow dr = dt.NewRow();
                    dr[0] = "0";
                    dr[1] = "--Select--";
                    dt.Rows.InsertAt(dr, 0);

                    cbLevels.DataSource    = dt;
                    cbLevels.DisplayMember = "desig_name";
                    cbLevels.ValueMember   = "desig_code";
                }
                dt = null;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                objServicedb = null;
            }
        }