增强了实例工程的抽象逻辑

Net462DllTest/Utils/RelayCommand.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace Net462DllTest.Utils
+{
+    public class RelayCommand : ICommand
+    {
+        private readonly Action<object> _execute;
+        private readonly Func<object,bool> _canExecute;
+
+        public RelayCommand(Action<object> execute, Func<object, bool> canExecute = null)
+        {
+            _execute = execute;
+            _canExecute = canExecute;
+        }
+
+        public event EventHandler CanExecuteChanged;
+
+        public bool CanExecute(object parameter = null)
+        {
+            return _canExecute == null || _canExecute(parameter);
+        }
+
+        public void Execute(object parameter = null)
+        {
+            _execute(parameter);
+        }
+
+        public void RaiseCanExecuteChanged()
+        {
+            CanExecuteChanged?.Invoke(this, EventArgs.Empty);
+        }
+    }
+}