自己写了一个表单校验

//using System;
//using System.Collections.Generic;
//using System.Linq;
//using System.Text;
//using System.Threading.Tasks;

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using Kingdee.BOS.Core.BusinessFlow.PlugIn;
using Kingdee.BOS.Core.Metadata.FieldElement;
using Kingdee.BOS.Core.Metadata;
using Kingdee.K3.SCM.Contracts;
using Kingdee.BOS.Util;
using Kingdee.BOS.Orm.DataEntity;
using Kingdee.K3.BD.Contracts;
using Kingdee.K3.Core.BD;
using Kingdee.BOS;
using Kingdee.BOS.Core.Const;
using Kingdee.K3.Core.SCM;
using Kingdee.BOS.BusinessEntity;
using Kingdee.BOS.Core.BusinessFlow.PlugIn.Args;
using Kingdee.BOS.Workflow.Contracts;
using Kingdee.BOS.Workflow.ServiceHelper;
using Kingdee.BOS.Core.DynamicForm.PlugIn.Args;
using Kingdee.BOS.Core.Bill.PlugIn;
using Kingdee.BOS.Core.Bill.PlugIn.Args;
using Kingdee.BOS.Core.Metadata.EntityElement;
namespace MyDev.K3.SCM.Stock.Business2.PlugIn
{
    [Description("装卸费用核算单插件")]
    public class SaleOrderEdit : AbstractBillPlugIn
    {
        public override void BeforeSave(BeforeSaveEventArgs e)
        {

            object rm = this.Model.GetValue("F_PAEZ_Amount1", 0);
            if (rm == null)
            {
                this.View.ShowMessage("员工人名必录！");
                return;
            }
        }
    }
 
}