概念
定义了一个校验器对象，通常是添加到业务单据操作服务插件，用于对操作的合法性进行校验。继承自校验器抽象对象AbstractValidator。 
应用场景
校验器 
示例
新建一个类，继承自AbstractValidator。
通常重写方法：

Validate

using Kingdee.BOS;
using Kingdee.BOS.Core;
using Kingdee.BOS.Core.Bill.PlugIn;
using Kingdee.BOS.Core.DynamicForm.PlugIn;
using Kingdee.BOS.Core.DynamicForm.PlugIn.Args;
using Kingdee.BOS.Core.Metadata;
using Kingdee.BOS.Core.Validation;
using Kingdee.BOS.Orm.DataEntity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Kingdee.K3.Example.ServicePlugIn.TestService
{/// <summary>/// Test 保存操作服务/// </summary>public class Save : AbstractOperationServicePlugIn{//// Summary://     可以定制加载指定字段到实体里//// Parameters://   e:     public override void OnPreparePropertys(BOS.Core.DynamicForm.PlugIn.Args.PreparePropertysEventArgs e){e.FieldKeys.Add("FMaterialID");base.OnPreparePropertys(e);}//// Summary://     通过此事件，通知插件进行添加自定义数据校验器//// Parameters://   e:public override void OnAddValidators(BOS.Core.DynamicForm.PlugIn.Args.AddValidatorsEventArgs e){TestValidator validator = new TestValidator();validator.AlwaysValidate = true;validator.EntityKey = "FBillHead";e.Validators.Add(validator);}//// Summary://     调用操作事物前触发//// Parameters://   e:public virtual void BeginOperationTransaction(BeginOperationTransactionArgs e){//todo}                //// Summary://     调用操作事物后触发//// Parameters://   e:public override void EndOperationTransaction(EndOperationTransactionArgs e){foreach (DynamicObject item in e.DataEntitys){DynamicObjectCollection entryItems = item["STK_LOTADJUSTENTRY"] as DynamicObjectCollection;//ConvertCommonService.UpdateConvertTo(this.Context, K3.Core.SCM.SCMTableConst.T_STK_LOTADJUSTENTRY, entryItems);}}// Summary://     执行操作事务后事件,通知插件对象执行其它事务无关的业务逻辑//// Parameters://   e:public override void AfterExecuteOperationTransaction(AfterExecuteOperationTransaction e) {//todo}//// Summary://     执行操作事务前事件，通知插件对要处理的数据进行排序等预处理//// Parameters://   e://     e.SelectedRows 准备要处理的扩展实体 e.DataEntitys 处理后的实体public override void BeforeExecuteOperationTransaction(BeforeExecuteOperationTransaction e) { //todo}/// <summary>/// 保存单据头校验器/// </summary>private class TestValidator : AbstractValidator{public override void Validate(ExtendedDataEntity[] dataEntities, ValidateContext validateContext, Context ctx){foreach (ExtendedDataEntity obj in dataEntities){object materialID = obj.DataEntity["MaterialID"];if (materialID == null){validateContext.AddError(obj.DataEntity,new ValidationErrorInfo("", obj.DataEntity["Id"].ToString(), obj.DataEntityIndex, 0,"001","错误信息","标题"));}}}}}
}

K/3 Cloud部门删除校验器

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Kingdee.BOS.Core.Validation;
using Kingdee.BOS.Core.DynamicForm.PlugIn;
using Kingdee.K3.BD.Common.BusinessEntity;
using Kingdee.BOS.Orm.DataEntity;
namespace Kingdee.K3.BD.App.Common.ServicePlugIn.Department
{/// <summary>/// 部门 删除操作 服务端插件/// </summary>public class Delete : AbstractOperationServicePlugIn{public override void OnPreparePropertys(BOS.Core.DynamicForm.PlugIn.Args.PreparePropertysEventArgs e){base.OnPreparePropertys(e);e.FieldKeys.Add("FName");e.FieldKeys.Add("FIsHRDept");e.FieldKeys.Add("FDocumentStatus");e.FieldKeys.Add("FNumber");}public override void OnAddValidators(BOS.Core.DynamicForm.PlugIn.Args.AddValidatorsEventArgs e){base.OnAddValidators(e);AbstractValidator validator;validator = new DeleteValidator();validator.EntityKey = "FBillHead";e.Validators.Add(validator);}}/// <summary>/// 部门删除校验器/// </summary>internal class DeleteValidator : AbstractValidator{public override void Validate(BOS.Core.ExtendedDataEntity[] dataEntities, ValidateContext validateContext, BOS.Context ctx){//获取所有部门的层级码信息IList<LevelCodeTreeNode> nodeList = Kingdee.K3.BD.Contracts.ServiceFactory.GetDepartmentService(Context).InitialLevelCodeTreeNodes(Context,(from dynObj in dataEntitieswhere dynObj.DataEntity["DocumentStatus"].ToString() == "A"select Convert.ToInt64(dynObj.DataEntity["Id"])).ToList());for (int i = 0; i < nodeList.Count; i++){LevelCodeTreeNode currentNode = nodeList[i];if (currentNode.ChildNodes == null || currentNode.ChildNodes.Count == 0){RemoveNode(nodeList, currentNode);}}//获取非删除部门列表IList<LevelCodeTreeNode> unDelNodes = (from item in nodeList where item.ChildNodes != null && item.ChildNodes.Count != 0 select item).ToList();foreach (var unDelNode in unDelNodes){BOS.Core.ExtendedDataEntity dynObj = FindDataObject(dataEntities, unDelNode);validateContext.AddError(dynObj.DataEntity,new ValidationErrorInfo(dynObj.DataEntity["Number"].ToString(),dynObj.DataEntity["Id"].ToString(),dynObj.DataEntityIndex,dynObj.RowIndex,dynObj.DataEntity["Id"].ToString(),string.Format(Kingdee.BOS.Resource.ResManager.LoadKDString("存在下级部门，建议先删除子部门后再删除本部门！","001001000000351",Kingdee.BOS.Resource.SubSystemType.BASE)),dynObj.DataEntity["Number"].ToString()));}}/// <summary>/// 获取当前树节点对应的实体数据/// </summary>/// <param name="dataEntities"></param>/// <param name="currentNode"></param>/// <returns></returns>private BOS.Core.ExtendedDataEntity FindDataObject(BOS.Core.ExtendedDataEntity[] dataEntities, LevelCodeTreeNode currentNode){foreach (var dynObj in dataEntities){if (Convert.ToInt64(dynObj.DataEntity["Id"]) == currentNode.Id){return dynObj;}}//原则上不会到这里return new BOS.Core.ExtendedDataEntity();}/// <summary>/// 清楚已被确认删除的树节点/// </summary>/// <param name="nodeList"></param>/// <param name="removeNode"></param>private void RemoveNode(IList<LevelCodeTreeNode> nodeList, LevelCodeTreeNode removeNode){for (int i = 0; i < nodeList.Count; i++){LevelCodeTreeNode checkNode = nodeList[i];for (int j = checkNode.ChildNodes.Count - 1; j >= 0; j--){LevelCodeTreeNode childNode = checkNode.ChildNodes[j];if (childNode.Id == removeNode.Id){checkNode.ChildNodes.RemoveAt(j);}}}}}
}