diff --git a/src/Khd.Core.Wpf/Form/FormBoardT.xaml.cs b/src/Khd.Core.Wpf/Form/FormBoardT.xaml.cs
index 1e0cd72..ae4c5d7 100644
--- a/src/Khd.Core.Wpf/Form/FormBoardT.xaml.cs
+++ b/src/Khd.Core.Wpf/Form/FormBoardT.xaml.cs
@@ -2619,7 +2619,7 @@ namespace Khd.Core.Wpf.Form
 
         private void Button_Click(object sender, RoutedEventArgs e)
         {
-            itemsControlItems.Clear();
+          
             TextBoxGetFocus();
         }