添加项目文件。

Live-Charts-master/Examples/Wpf/CartesianChart/SectionsMouseMove/SectionMouseMoveSample.xaml.cs

@@ -0,0 +1,45 @@
+using System.Windows.Controls;
+using System.Windows.Input;
+using LiveCharts;
+using LiveCharts.Helpers;
+using LiveCharts.Wpf;
+
+namespace Wpf.CartesianChart.SectionsMouseMove
+{
+	/// <summary>
+	/// Interaction logic for SectionMouseMoveSample.xaml
+	/// </summary>
+	public partial class SectionMouseMoveSample : UserControl
+	{
+		public SectionMouseMoveSample()
+		{
+			InitializeComponent();
+		}
+
+	    private void UIElement_OnMouseMove(object sender, MouseEventArgs e)
+	    {
+	        var vm = (ViewModel) DataContext;
+	        var chart = (LiveCharts.Wpf.CartesianChart) sender;
+
+            //lets get where the mouse is at our chart
+	        var mouseCoordinate = e.GetPosition(chart);
+
+            //now that we know where the mouse is, lets use
+            //ConverToChartValues extension
+            //it takes a point in pixes and scales it to our chart current scale/values
+            var p = chart.ConvertToChartValues(mouseCoordinate);
+            
+            //in the Y section, lets use the raw value
+	        vm.YPointer = p.Y;
+
+            //for X in this case we will only highlight the closest point.
+            //lets use the already defined ClosestPointTo extension
+            //it will return the closest ChartPoint to a value according to an axis.
+            //here we get the closest point to p.X according to the X axis
+	        var series = chart.Series[0];
+            var closetsPoint = series.ClosestPointTo(p.X, AxisOrientation.X);
+
+            vm.XPointer = closetsPoint.X;
+	    }
+	}
+}