update tag demo

src/Shared/HandyControlDemo_Shared/ViewModel/Controls/TagDemoViewModel.cs

@@ -0,0 +1,13 @@
+using HandyControlDemo.Data;
+using HandyControlDemo.Service;
+
+namespace HandyControlDemo.ViewModel
+{
+    public class TagDemoViewModel : DemoViewModelBase<DemoDataModel>
+    {
+        public TagDemoViewModel(DataService dataService)
+        {
+            DataList = dataService.GetDemoDataList(10);
+        }
+    }
+}