保存前事件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Kingdee.BOS;
using Kingdee.BOS.Core;
//服务端
using Kingdee.BOS.Core.DynamicForm.PlugIn;
using Kingdee.BOS.Core.DynamicForm.PlugIn.Args;
//校验器
using Kingdee.BOS.Core.Validation;
using System.ComponentModel;
using System.Data;
using Kingdee.BOS.App.Data;
using Kingdee.BOS.Orm.DataEntity;
using Kingdee.BOS.Core.Metadata.FormElement;
namespace BHR.K3.App.Service.PlugIn.BaoCunQian
{
    [Description("单号—序号拼接保存")]
    [Kingdee.BOS.Util.HotUpdate]

    //继承操作服务插件
    public class OnAddValidatorsHead : AbstractOperationServicePlugIn
    {
        //定义一个DataTable字段
        DataTable dtTable;

        //OnPreparePropertys 数据加载前，确保需要的属性被加载
        public override void OnPreparePropertys(PreparePropertysEventArgs e)
        {
            base.OnPreparePropertys(e);
            //加载本节使用的字段
            e.FieldKeys.Add("FBILLNOFSEQ");
            e.FieldKeys.Add("FBILLNOFseq");
        }
        //本节使用的方法,事务开始前事件
        public override void BeforeExecuteOperationTransaction(BeforeExecuteOperationTransaction e)
        {
            base.BeforeExecuteOperationTransaction(e);

            //e.CancelMessage = "测试终止操作执行";
            //e.Cancel = true;
            //询价单明细
            string InquirySup = "InquiryEntry";
            string BillNo = "BillNo";
            string Seq = "Seq";
            string FBILLNOFSEQ = "FBILLNOFSEQ";
            string FFormId = "FFormId";

         
            string E9BillNo = "";
            string E9Seq = "";
            string E9FBILLNOFSEQ = "";
   
            try
            {
                foreach (ExtendedDataEntity extended in e.SelectedRows)
                {
                    int flog = 0;

                    DynamicObject dy = extended.DataEntity;

                   
                    switch (dy[FFormId])
                    {
                       //询价单
                        case "SVM_InquiryBill":
                             InquirySup = "InquiryEntry";
                             BillNo = "BillNo";
                             Seq = "Seq";

                            break;
                        //采购订单
                        case "PUR_PurchaseOrder":
                            InquirySup = "POOrderEntry";
                          
                            //单号-序号
                            FBILLNOFSEQ = "FBILLNOFSEQ";
                  
                            E9BillNo = "FE9BILL";
                            E9Seq = "FE9XH";
                            E9FBILLNOFSEQ = "FE9BILLNOFSEQ";
                            break;
                        default:
                            break;
                    }
                    DynamicObjectCollection docPriceEntity = dy[InquirySup] as DynamicObjectCollection;
                    foreach (DynamicObject HHentity in docPriceEntity)
                    {
                        //金蝶单号-序号
                        HHentity[FBILLNOFSEQ] = (Convert.ToString(dy[BillNo]) + "-" + Convert.ToString(HHentity[Seq]));
                   
                        HHentity[E9FBILLNOFSEQ] = (Convert.ToString(dy[E9BillNo]) + "-" + Convert.ToString(HHentity[E9Seq]));
                    }

                }
            }
            catch (Exception)
            {

                throw;
            }
         
  

        }
    }
}