添加项目文件。

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

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+using System;
+using LiveCharts;
+using LiveCharts.Events;
+
+namespace Wpf.CartesianChart.Events
+{
+    public class ViewModel
+    {
+        public ViewModel()
+        {
+            DataClickCommand = new MyCommand<ChartPoint>
+            {
+                ExecuteDelegate = p => Console.WriteLine(
+                    "[COMMAND] you clicked " + p.X + ", " + p.Y)
+            };
+            DataHoverCommand = new MyCommand<ChartPoint>
+            {
+                ExecuteDelegate = p => Console.WriteLine(
+                    "[COMMAND] you hovered over " + p.X + ", " + p.Y)
+            };
+            UpdaterTickCommand = new MyCommand<LiveCharts.Wpf.CartesianChart>
+            {
+                ExecuteDelegate = c => Console.WriteLine("[COMMAND] Chart was updated!")
+            };
+            RangeChangedCommand = new MyCommand<RangeChangedEventArgs>
+            {
+                ExecuteDelegate = e => Console.WriteLine("[COMMAND] Axis range changed")
+            };
+        }
+
+        public MyCommand<ChartPoint> DataHoverCommand { get; set; }
+        public MyCommand<ChartPoint> DataClickCommand { get; set; }
+        public MyCommand<LiveCharts.Wpf.CartesianChart> UpdaterTickCommand { get; set; }
+        public MyCommand<RangeChangedEventArgs> RangeChangedCommand { get; set; }
+    }
+}