用MVC做WinForm客户端

昨天突然脑洞大开，觉得WinForm客户端也可以做成MVC！想到就做！于是把以前做的一个WinForm工程拉出来，选了角色权限模块先试个水。

第一步：调整项目结构，调整后结构如下图：

第二步：拆分逻辑

原来整个窗体类里面包含了很多业务逻辑，这部分不用说，直接拆分到Controller里面，还有工具栏点击事件的处理逻辑，也同样分离出来放到Controller里面。拆分之后，窗体类就变成了一个纯粹的View了。至于Model，就是拖进一个叫Model的文件夹里面就好了。

第三步：处理命名空间变化带来的一系列问题。大概花了两小时，部分重构完成，程序运行正常！

总结：重构后逻辑更加清晰，任务更容易分解，也更容易进行单元测试。这个思路个人认为值得推广。

部分代码：

Manager：

using System;using System.Collections.Generic;using System.Linq;using DevExpress.XtraBars;using DevExpress.XtraGrid.Views.Base;using DevExpress.XtraTreeList;using Insight.WS.Client.Base.Role.Controller;using Insight.WS.Client.Base.Role.Model;using Insight.WS.Client.Common;namespace Insight.WS.Client.Base.Role.View{    public partial class Manager : MdiBase    {        #region 变量声明        public static List<RoleInfo> Roles;        public static RoleInfo Role;        private bool First = true;        #endregion        #region 构造函数        public Manager()        {            InitializeComponent();            // 注册事件            gdvRole.FocusedRowObjectChanged += gdvRole_FocusedRowObjectChanged;            treMember.CustomDrawNodeImages += CustomDrawNodeImages;            treModule.CustomDrawNodeImages += DrawNodeImages;            treAction.CustomDrawNodeImages += DrawNodeImages;            treData.CustomDrawNodeImages += DrawNodeImages;        }        #endregion        #region 界面事件处理        /// <summary>        /// 窗体加载时初始化控件        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void RoleManage_Load(object sender, EventArgs e)        {            InitToolBar();            Roles = new List<RoleInfo>();            Role = new RoleInfo();            // 初始化角色列表            grdRole.DataSource = Roles;            Format.GridFormat(gdvRole);            // 初始化角色成员            treMember.SelectImageList = imgMember;            treMember.DataSource = Role.Members;            Format.TreeFormat(treMember);            // 初始化角色成员用户            grdUser.DataSource = Role.Users;            Format.GridFormat(gdvUser);            // 初始化业务模块列表            treModule.SelectImageList = imgPermission;            treModule.DataSource = Role.Modules;            Format.TreeFormat(treModule);            // 初始化操作权限列表            treAction.DataSource = Role.Actions;            Format.TreeFormat(treAction);            treAction.SelectImageList = imgPermission;            // 初始化数据权限列表            treData.DataSource = Role.Datas;            Format.TreeFormat(treData);            treData.SelectImageList = imgData;        }        /// <summary>        /// 窗体显示时加载数据        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void Manager_Shown(object sender, EventArgs e)        {            General.InitRoleList();            grdRole.DataSource = Roles;            gdvRole.MoveFirst();        }        /// <summary>        /// 角色列表选中行变化        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void gdvRole_FocusedRowObjectChanged(object sender, FocusedRowObjectChangedEventArgs e)        {            Role = (RoleInfo) gdvRole.GetFocusedRow();            var dict = new Dictionary<string, bool>            {                {"DeleteRole", !Role.BuiltIn},                {"AddMember", !Role.BuiltIn}            };            SwitchItemStatus(dict);            treMember.DataSource = Role.Members;            treMember.ExpandAll();            grdUser.DataSource = Role.Users;            treData.DataSource = Role.Datas;            treData.ExpandToLevel(0);            treData.MoveFirst();            treAction.DataSource = Role.Actions;            treAction.ExpandToLevel(0);            treAction.MoveFirst();            treModule.DataSource = Role.Modules;            treModule.ExpandAll();            treModule.MoveFirst();            if (!First) return;            tabPermission.SelectedTabPageIndex = 1;            tabPermission.SelectedTabPageIndex = 0;            First = false;        }        /// <summary>        /// 切换角色成员        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void treMember_FocusedNodeChanged(object sender, FocusedNodeChangedEventArgs e)        {            if (treMember.FocusedNode == null) return;            var canRemove = !Role.BuiltIn && (int)treMember.FocusedNode.GetValue("NodeType") != 0;            var dict = new Dictionary<string, bool>            {                {"Remove", canRemove}            };            SwitchItemStatus(dict);        }        /// <summary>        /// 双击角色列表编辑当前所选角色        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void gdvRole_DoubleClick(object sender, EventArgs e)        {            var id = (Guid) gdvRole.GetFocusedDataRow()["ID"];            var edit = barManager.Items["EditRole"];            if (gdvRole.FocusedRowHandle < 0 || !edit.Enabled) return;            Event.RoleEdit(true, id);        }        /// <summary>        /// 显示角色成员的类型图标        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void CustomDrawNodeImages(object sender, CustomDrawNodeImagesEventArgs e)        {            if (e.Node.Level != 0) return;            e.SelectImageIndex = Convert.ToInt32(e.Node.GetValue("MemberId").ToString().Substring(0, 1));        }        /// <summary>        /// 重绘模块功能树节点图标        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void DrawNodeImages(object sender, CustomDrawNodeImagesEventArgs e)        {            e.SelectImageIndex = (int)e.Node.GetValue("Type");        }        /// <summary>        /// 重载菜单列表        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        protected override void item_ItemClick(object sender, ItemClickEventArgs e)        {            switch (e.Item.Name)            {                case "Refresh":                    General.InitRoleList();                    break;                case "NewRole":                    Event.RoleEdit(false, Guid.Empty);                    gdvRole.FocusedRowHandle = gdvRole.GetRowHandle(Roles.Count - 1);                    break;                case "EditRole":                    var id = (Guid)gdvRole.GetFocusedDataRow()["ID"];                    Event.RoleEdit(true, id);                    break;                case "DeleteRole":                    Event.RoleDelete();                    gdvRole.RefreshData();                    break;                case "AddMember":                    Event.MemberAdd();                    break;                case "Remove":                    var mid = (Guid) treMember.FocusedNode.GetValue("ID");                    var member = Role.Members.Single(m => m.ID == mid);                    Event.MemberRemove(member);                    treMember.RefreshDataSource();                    break;            }        }        #endregion    }}

Event：

using System;using System.Windows.Forms;using Insight.WS.Client.Base.Role.Model;using Insight.WS.Client.Base.Role.View;using static Insight.WS.Client.Common.Util.Message;namespace Insight.WS.Client.Base.Role.Controller{    public class Event    {        #region Manager        /// <summary>        /// 新建/编辑当前所选角色        /// </summary>        /// <param name="isEdit"></param>        /// <param name="id"></param>        public static void RoleEdit(bool isEdit, Guid id)        {            var dig = new Wizard            {                IsEdit = isEdit,                ObjectId = id            };            dig.Close();        }        /// <summary>        /// 删除当前所选角色        /// </summary>        public static void RoleDelete()        {            var msg = $"您确定要删除角色【{Manager.Role.Name}】吗？\r\n角色删除后将无法恢复！";            if (ShowConfirm(msg) != DialogResult.OK) return;            var result = Repository.RemoveRole(Manager.Role.ID);            if (!result.Successful)            {                ShowError($"{result.Message}\r\n对不起，角色【{Manager.Role.Name}】删除失败！如多次删除失败，请联系管理员。");                return;            }            Manager.Roles.Remove(Manager.Role);        }        /// <summary>        /// 为当前所选角色添加成员        /// </summary>        public static void MemberAdd()        {            var dig = new Member();            dig.Close();        }        /// <summary>        /// 删除当前所选角色成员        /// </summary>        public static void MemberRemove(RoleMember member)        {            var msg = $"您确定要移除角色成员【{member.Member}】吗？\r\n角色成员被移除后相应用户将失去该角色赋予的权限！";            if (ShowConfirm(msg) != DialogResult.OK) return;            var result = Repository.RemoveRoleMember(member.MemberId, member.NodeType);            if (!result.Successful)            {                ShowError($"{result.Message}\r\n对不起，角色成员【{member.Member}】移除失败！如多次移除失败，请联系管理员。");                return;            }            Manager.Role.Members.Remove(member);        }        #endregion    }}

Repository：

using System;using Insight.WS.Client.Common.Entity;using static Insight.WS.Client.Common.Util.HttpHelper;using static Insight.WS.Client.Common.Util.Utils;namespace Insight.WS.Client.Base.Role.Controller{    public class Repository    {        /// <summary>        /// 删除指定角色        /// </summary>        /// <returns>JsonResult</returns>        public static JsonResult RemoveRole(Guid id)        {            var url = BaseServer + $"r/roles/{id}";            return HttpRequest(url, "DELETE", AutherKey);        }        /// <summary>        /// 获取所有角色        /// </summary>        /// <returns>JsonResult</returns>        public static JsonResult GetRoles()        {            var url = BaseServer + "r/roles";            return HttpRequest(url, "GET", AutherKey);        }        /// <summary>        /// 删除指定角色成员        /// </summary>        /// <param name="id">成员关系ID</param>        /// <param name="type">成员类型</param>        /// <returns>JsonResult</returns>        public static JsonResult RemoveRoleMember(Guid id, int type)        {            var url = BaseServer + $"r/roles/members/{id}?type={type}";            return HttpRequest(url, "DELETE", AutherKey);        }    }}