UserControl PreviewMouseLeftButtonUp问题

我在WPF中有一个UserControl。我还有一个无边界窗口。要移动它-我使用DragMove。 问题是-如果我单击控件,然后移动窗口-单击时也会触发事件 控制装置,不在上面。

这是我的密码:

<UserControl x:Class="WpfApplication1.UserControl1"
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
       xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
       xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
       mc:Ignorable="d" 
       d:DesignHeight="300" d:DesignWidth="300" MouseEnter="UserControl_MouseEnter" MouseLeave="UserControl_MouseLeave">
  <Grid>

  </Grid>
</UserControl>

用户控制1.xaml.cs:

public partial class UserControl1 : UserControl
  {
    public UserControl1()
    {
      InitializeComponent();
    }

    private void UserControl_MouseEnter(object sender, MouseEventArgs e)
    {
      CaptureMouse();
    }

    private void UserControl_MouseLeave(object sender, MouseEventArgs e)
    {
      ReleaseMouseCapture();
    }


  }

主窗口.xaml:

<Window x:Class="WpfApplication1.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525" xmlns:my="clr-namespace:WpfApplication1" WindowStyle="None" MouseLeftButtonDown="Window_MouseLeftButtonDown">
  <Grid>
    <my:UserControl1 Margin="39,29,380,199" Background="Red" PreviewMouseLeftButtonUp="UserControl1_PreviewMouseLeftButtonUp">

    </my:UserControl1>
  </Grid>
</Window>

主窗口.xaml.cs:

public partial class MainWindow : Window
  {
    public MainWindow()
    {
      InitializeComponent();
    }


    private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {
      DragMove();
    }

    private void UserControl1_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
    {
      MessageBox.Show("Hello World");
    }
  }

如果你运行这个应用程序-你会看到,如果你点击控件,然后拖动窗口,然后点击控件附近(侧面可能不同)-它会触发PreviewMouseLeftButtonUp事件,即使你没有点击控件本身。

有什么办法解决这个问题吗? 谢谢!