update pr/59

HandyControlDemo/ViewModel/Controls/BadgeDemoCtlViewModel.cs

@@ -1,25 +0,0 @@
-using System.Windows.Input;
-using GalaSoft.MvvmLight;
-using GalaSoft.MvvmLight.CommandWpf;
-
-namespace HandyControlDemo.ViewModel.Controls
-{
-    public class BadgeDemoCtlViewModel : ViewModelBase
-    {
-        private int _count;
-
-        public int Count
-        {
-            get => _count;
-            set => Set(ref _count, value);
-        }
-
-        public ICommand CountCommand { get; }
-
-        public BadgeDemoCtlViewModel()
-        {
-            Count = 1;
-            CountCommand = new RelayCommand(() => Count++);
-        }
-    }
-}

HandyControlDemo/ViewModel/Controls/BadgeDemoViewModel.cs

@@ -0,0 +1,20 @@
+using System;
+using GalaSoft.MvvmLight;
+using GalaSoft.MvvmLight.CommandWpf;
+
+namespace HandyControlDemo.ViewModel.Controls
+{
+    public class BadgeDemoViewModel : ViewModelBase
+    {
+        private int _count = 1;
+
+        public int Count
+        {
+            get => _count;
+            set => Set(ref _count, value);
+        }
+
+        public RelayCommand CountCmd => new Lazy<RelayCommand>(() =>
+            new RelayCommand(() => Count++)).Value;
+    }
+}