add Drawer demo

src/Shared/HandyControlDemo_Shared/ViewModel/Main/MainViewModel.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Windows.Controls;
 #if netle40
 using GalaSoft.MvvmLight.Command;
@@ -29,9 +30,14 @@ namespace HandyControlDemo.ViewModel
         private object _subContent;
 
         /// <summary>
-        ///     当前选中的列表项
+        ///     demo信息
         /// </summary>
-        private ListBoxItem _listBoxItemCurrent;
+        private List<DemoInfoModel> _demoInfoList;
+
+        /// <summary>
+        ///     当前选中的demo项
+        /// </summary>
+        private DemoItemModel _demoItemCurrent;
 
         #endregion
 
@@ -45,13 +51,18 @@ namespace HandyControlDemo.ViewModel
                 }
                 SubContent = obj;
             });
+
             Messenger.Default.Register<object>(this, MessageToken.ClearLeftSelected, obj =>
             {
-                if (_listBoxItemCurrent == null) return;
-                _listBoxItemCurrent.IsSelected = false;
-                _listBoxItemCurrent = null;
+                _demoItemCurrent = null;
+                foreach (var item in DemoInfoList)
+                {
+                    item.SelectedIndex = -1;
+                }
             });
+
             DataList = dataService.GetDemoDataList();
+            DemoInfoList = dataService.GetDemoInfo();
         }
 
         #region 属性
@@ -82,6 +93,19 @@ namespace HandyControlDemo.ViewModel
 #endif
         }
 
+        /// <summary>
+        ///     demo信息
+        /// </summary>
+        public List<DemoInfoModel> DemoInfoList
+        {
+            get => _demoInfoList;
+#if netle40
+            set => Set(nameof(DemoInfoList), ref _demoInfoList, value);
+#else
+            set => Set(ref _demoInfoList, value);
+#endif
+        }
+
         #endregion
 
         #region 命令
@@ -115,24 +139,16 @@ namespace HandyControlDemo.ViewModel
         private void SwitchDemo(SelectionChangedEventArgs e)
         {
             if (e.AddedItems.Count == 0) return;
-            if (e.AddedItems[0] is ListBoxItem item)
+            if (e.AddedItems[0] is DemoItemModel item)
             {
-                if (item.Tag is string tag)
-                {
-                    if (Equals(_listBoxItemCurrent, item)) return;
-                    _listBoxItemCurrent = item;
-                    ContentTitle = item.Content;
-                    var obj = AssemblyHelper.ResolveByKey(tag);
-                    var ctl = obj ?? AssemblyHelper.CreateInternalInstance($"UserControl.{tag}");
-                    Messenger.Default.Send(ctl is IFull, MessageToken.FullSwitch);
-                    Messenger.Default.Send(ctl, MessageToken.LoadShowContent);
-                }
-                else
-                {
-                    _listBoxItemCurrent = null;
-                    ContentTitle = null;
-                    SubContent = null;
-                }
+                if (Equals(_demoItemCurrent, item)) return;
+
+                _demoItemCurrent = item;
+                ContentTitle = item.Name;
+                var obj = AssemblyHelper.ResolveByKey(item.TargetCtlName);
+                var ctl = obj ?? AssemblyHelper.CreateInternalInstance($"UserControl.{item.TargetCtlName}");
+                Messenger.Default.Send(ctl is IFull, MessageToken.FullSwitch);
+                Messenger.Default.Send(ctl, MessageToken.LoadShowContent);
             }
         }