diff --git a/插件库/Lskj.Control/ChartControlEx.cs b/插件库/Lskj.Control/ChartControlEx.cs
index 4228667..1bf4bc4 100644
--- a/插件库/Lskj.Control/ChartControlEx.cs
+++ b/插件库/Lskj.Control/ChartControlEx.cs
@@ -514,9 +514,9 @@ namespace Lskj.Control
         private void OnCmMainCustomDrawSeriesPoint(object sender, CustomDrawSeriesPointEventArgs e)
         {
             int index = e.Series.Points.IndexOf(e.SeriesPoint);
-            if (e.Series.View is LineSeriesView && index == 0)//第一个点显示名称
+            if (e.Series.View is LineSeriesView && index == 0 && e.SeriesPoint != null && e.SeriesPoint.Length > 0)//第一个点显示名称
             {
-                e.LabelText = $"{e.Series.Name}：{e.LabelText}";
+                e.LabelText = $"{e.Series.Name}：{e.SeriesPoint[0]}";
             }
         }