Synchronize the Net40

Net40/HandyControlDemo_Net40/ViewModel/Controls/CoverViewModel.cs

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