添加项目文件。

Live-Charts-master/Examples/Wpf/CartesianChart/Events/ChartPointCommandHandler.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Windows.Input;
+
+namespace Wpf.CartesianChart.Events
+{
+    public class MyCommand<T> : ICommand where T : class
+    {
+        public Predicate<T> CanExecuteDelegate { get; set; }
+        public Action<T> ExecuteDelegate { get; set; }
+
+        public bool CanExecute(object parameter)
+        {
+            return CanExecuteDelegate == null || CanExecuteDelegate((T) parameter);
+        }
+
+        public void Execute(object parameter)
+        {
+            if (ExecuteDelegate != null) ExecuteDelegate((T) parameter);
+        }
+
+        public event EventHandler CanExecuteChanged
+        {
+            add { CommandManager.RequerySuggested += value; }
+            remove { CommandManager.RequerySuggested -= value; }
+        }
+    }
+}