diff --git a/CowOutputClient/OperateWindow.xaml b/CowOutputClient/OperateWindow.xaml
index e9c9253..e7f8936 100644
--- a/CowOutputClient/OperateWindow.xaml
+++ b/CowOutputClient/OperateWindow.xaml
@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         Title="OperateWindow" Height="768" Width="1064" WindowStyle="None" AllowsTransparency="True" Background="#0fff" WindowStartupLocation="CenterScreen" Loaded="Window_Loaded_1" >
-    <Grid MouseLeftButtonDown="Grid_MouseLeftButtonDown">
+    <Grid>
         <Border CornerRadius="20" Background="#ccc">
             <Border Margin="20" Background="White">
             </Border>
diff --git a/CowOutputClient/OperateWindow.xaml.cs b/CowOutputClient/OperateWindow.xaml.cs
index cfa1bcd..b27937f 100644
--- a/CowOutputClient/OperateWindow.xaml.cs
+++ b/CowOutputClient/OperateWindow.xaml.cs
@@ -315,11 +315,6 @@ namespace CowOutputClient
       return true;
     }
 
-    private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
-    {
-      DragMove();
-    }
-
     private void Window_Loaded_1(object sender, RoutedEventArgs e)
     {
       thread1 = new MyThread();