fixed #192

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

@@ -34,11 +34,6 @@ namespace HandyControlDemo.ViewModel
         /// </summary>
         private List<DemoInfoModel> _demoInfoList;
 
-        /// <summary>
-        ///     当前选中的demo项
-        /// </summary>
-        private DemoItemModel _demoItemCurrent;
-
         #endregion
 
         public MainViewModel(DataService dataService)
@@ -54,7 +49,7 @@ namespace HandyControlDemo.ViewModel
 
             Messenger.Default.Register<object>(this, MessageToken.ClearLeftSelected, obj =>
             {
-                _demoItemCurrent = null;
+                DemoItemCurrent = null;
                 foreach (var item in DemoInfoList)
                 {
                     item.SelectedIndex = -1;
@@ -67,6 +62,13 @@ namespace HandyControlDemo.ViewModel
 
         #region 属性
 
+        /// <summary>
+        ///     当前选中的demo项
+        /// </summary>
+        public DemoItemModel DemoItemCurrent { get; private set; }
+
+        public DemoInfoModel DemoInfoCurrent { get; set; }
+
         /// <summary>
         ///     子内容
         /// </summary>
@@ -141,9 +143,9 @@ namespace HandyControlDemo.ViewModel
             if (e.AddedItems.Count == 0) return;
             if (e.AddedItems[0] is DemoItemModel item)
             {
-                if (Equals(_demoItemCurrent, item)) return;
+                if (Equals(DemoItemCurrent, item)) return;
 
-                _demoItemCurrent = item;
+                DemoItemCurrent = item;
                 ContentTitle = item.Name;
                 var obj = AssemblyHelper.ResolveByKey(item.TargetCtlName);
                 var ctl = obj ?? AssemblyHelper.CreateInternalInstance($"UserControl.{item.TargetCtlName}");