[K/3Cloud]创建一个操作校验器

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 dataEntities
                 where 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);
                    }
                }
            }
        }
    }
}