销售订单：增加 判断单据是否存在的方法

duhe

2023-11-16 1f04dee5f7849d8c0506c9ace925bec768539ea3

 LMES/ClsShowMod.cs

@@ -3778,6 +3778,11 @@
                        Kf_SellOutBill oKf_SellOutBill = new Kf_SellOutBill();
                        oKf_SellOutBill.ShowDialog();
                        break;
                    case "kf_selloutbill_barcodenote":
                        //
                        Kf_SellOutBill_BarCodeNote oKf_SellOutBill_BarCodeNote = new Kf_SellOutBill_BarCodeNote();
                        oKf_SellOutBill_BarCodeNote.ShowDialog();
                        break;
                    case "kf_mateoutbilllist":
                        //权限
                        Kf_MateOutBillList oKf_MateOutBillList = new Kf_MateOutBillList();