//RefundingUserInvoice
 public JsonExecuteResult RefundingUserInvoice(long userinvoice_id)
 {
     try
     {
         dataContext.spInvoice_RefundUserInvoice(userinvoice_id);
     }
     catch (Exception ex)
     {
         return(new JsonExecuteResult(JsonExecuteResultTypes.ERROR, ex.Message));
     }
     return(new JsonExecuteResult(JsonExecuteResultTypes.SUCCESS));
 }