一个菜单的的加载

话说好久没编码了，突然要写代码有点不习惯

 

那到一个需要做动态加载的菜单，想了半天，总算有点思路了做了第一个简单的例子，思维大致如下：

 

1、既然是菜单，就可以无限递归。因此需要菜单对象包含一个自身列表。

 

2、既然是菜单，加载的业务逻辑可能不同，因此需要可以动态配置业务逻辑。

 

3、既然要加载，则需要实现递归加载的函数，并满足基础共用的参数及习惯。

 

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Collections; namespace MenuLoadTest { /// <summary> /// 获取菜单的代理 /// </summary> /// <param name="menuInfo">菜单信息</param> /// <param name="para">查询条件</param> /// <returns></returns> public delegate void findMenu(MenuNode menuInfo, params string[] para); /// <summary> /// 菜单对象实体 /// </summary> public class MenuNode { private int menuID = 0; private int parentID = -1; private string menuName; private string desc; private List<MenuNode> nodeList; #region 属性 public int MenuID { get { return menuID; } set { menuID = value; } } public int ParentID { get { return parentID; } set { parentID = value; } } public string MenuName { get { return menuName; } set { menuName = value; } } public string Desc { get { return desc; } set { desc = value; } } public List<MenuNode> NodeList { get { return nodeList; } set { nodeList = value; } } #endregion } /// <summary> /// 封装不同的业务返回相同的菜单 /// </summary> public class MenuBusiness { private findMenu yourSelfBusiness; /// <summary> /// 定义自身生产菜单树的业务逻辑方法 /// </summary> public findMenu YourSelfBusiness { get { return yourSelfBusiness; } set { yourSelfBusiness = value; } } public void GetMenu(MenuNode menuInfo, params string[] para) { if (yourSelfBusiness != null) { YourSelfBusiness(menuInfo, para); } } } public class OutputMenu { public static void Main() { SetMenuNode setMenu = new SetMenuNode(); MenuNode menuObject = new MenuNode(); MenuBusiness menuBusiness = new MenuBusiness(); menuBusiness.YourSelfBusiness = setMenu.GetMenu; menuBusiness.GetMenu(menuObject, null); Console.WriteLine(menuObject.NodeList.Count); } } /// <summary> /// 产生菜单业务逻辑的一个分支 /// </summary> public class SetMenuNode { private static string[][] menuList = new string[][] { new string[]{ "1", "0", "01", "01" }, new string[]{ "2", "0", "02", " 01" }, new string[]{ "3", "1", "11", "11" } , new string[] {"4","1","12","12"}, new string[] {"5","2","21","21"}, new string[] {"6","2","22","22"} }; /// <summary> /// 定义了获取自身方法，以满足获取单独的菜单内容 /// </summary> /// <param name="menuInfo"></param> /// <returns></returns> public void GetMenuSelf(MenuNode menuInfo) { foreach (string[] str in menuList) { if (int.Parse(str[0]) == menuInfo.MenuID) { menuInfo.MenuID = int.Parse(str[0]); menuInfo.ParentID = int.Parse(str[1]); menuInfo.MenuName = str[2]; menuInfo.Desc = str[3]; } } } public void GetMenu(MenuNode menuInfo, params string[] para) { //如果主节点ID为-1，则表示自身未查找 if (menuInfo.ParentID == -1) { GetMenuSelf(menuInfo); } foreach (string[] str in menuList.Where(o => (int.Parse(o[1]) == menuInfo.MenuID))) { if (menuInfo.NodeList == null) menuInfo.NodeList = new List<MenuNode>(); MenuNode childNode = new MenuNode(); childNode.MenuID = int.Parse(str[0]); childNode.ParentID = int.Parse(str[1]); childNode.MenuName = str[2]; childNode.Desc = str[3]; GetMenu(childNode, para); menuInfo.NodeList.Add(childNode); } } } }

 

 

总结：

虽然简单的加载方法是完成了，不过明显还可以继续扩充，实现加载类似循环嵌套的任何对象，有时间在深入想下吧。