添加DataService为数据服务类，负责数据的加载工作，通过消息来通知DataService更新数据

Data/Entities/DbMenu.cs

@@ -1,4 +1,6 @@
+using PMSWPF.Enums;
 using SqlSugar;
+using SqlSugar.DbConvert;
 
 namespace PMSWPF.Data.Entities;
 
@@ -10,6 +12,8 @@ public class DbMenu
     public string Icon { get; set; }
     public string Name { get; set; }
     public int ParentId { get; set; }
+    [SugarColumn(ColumnDataType = "varchar(20)", SqlParameterDbType = typeof(EnumToStringConvert))]
+    public MenuType Type { get; set; }
     
     [SugarColumn(IsIgnore = true)]
     public List<DbMenu> Items { get; set; }

Data/Repositories/MenuRepository.cs

@@ -63,12 +63,14 @@ public class MenuRepository
         {
             Name = "默认变量表",
             Icon = SegoeFluentIcons.Tablet.Glyph,
+            Type = MenuType.VariableTableMenu,
             ParentId = addDM.Id,
         };
         var addVarTable=new MenuBean()
         {
             Name = "添加变量表",
             Icon = SegoeFluentIcons.Add.Glyph,
+            Type = MenuType.AddVariableTableMenu,
             ParentId = addDM.Id,
         };
         var defTableRes = await _db.Insertable<DbMenu>(defVarTable).ExecuteCommandAsync();