public COM.MEMBERS.SQLReturnMessageNValue DMT_GetCharge(String Amount, Guid mainid, int userlevel)
 {
     try
     {
         string[,] param = { { "AMOUNT", Amount }, { "mainid", mainid.ToString() }, { "userlevel", userlevel.ToString() } };
         COM.MEMBERS.SQLReturnMessageNValue Mval = SqlHelper.ExecuteProcedureReturnMessageNValue("DMT_GET_CHARGE", param);
         return(Mval);
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }