public void GetTaxAndFee() { //应付应收款 textEditNeedToPay.EditValue = inoutHelper.CalcTaxTotalFee(gvProductSJ); //合计金额 textEditTotalFee.EditValue = inoutHelper.CalcTaxTotalFee(gvProductSJ); //税额 textEditAmountTax.EditValue = inoutHelper.CalcAmountTax(gvProductSJ); //本次收支款 textEditPayThisTime.EditValue = 0.0; //折扣金额 textEditDiscountFee.EditValue = 0.0; }