public static Int32 deleteAllTmpPurchaseOrder()
        {
            PurchaseOrderDAL objDal = new PurchaseOrderDAL();

            try
            {
                return(objDal.deleteAllTmpPurchaseOrder());
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                objDal = null;
            }
        }