Question

WPF窗口边框上的双击事件是否会触发任何事件？

我怎么能抓住它？

谢谢！

Answer 1

这是一种方法..只需将Window.WindowStyle设置为“None”并创建下窗口边框：

<Grid>
    <Border 
        BorderBrush="Silver"  
        BorderThickness="10" 
        Name="border1" 
        MouseLeftButtonDown="border1_MouseLeftButtonDown" />
</Grid>

在代码背后：

private void border1_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
    if (e.ClickCount == 2)
       MessageBox.Show("Double Click");
}

Answer 2

很抱歉迟到了，但我想建议你最好用第一个答案（Jaster）到Why doesnt WPF border control have a mousedoubleclick event?。

它更清洁，甚至不使用一行代码，因此它完全符合MVVM标准，应该是你的方式。

<Window x:Class="Yoda.Frontend.MainView" x:Name="MainViewWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <Border>
    <Border.InputBindings>
      <MouseBinding MouseAction="LeftDoubleClick"
                    Command="{Binding YourBindableCommand}"
                    CommandParameter="{Binding}" />
    </Border.InputBindings>
  </Border>
</Window>

注意：当然，您必须使用ViewModel提供的相应命令替换YourBindableCommand。如果您需要帮助，请告诉我。

Answer 3

using System.Windows.Input;
using System.Windows.Threading;
  namespace System.Windows.Controls{
    class DCCanvas : Canvas{

        public event MouseButtonEventHandler MouseDoubleClick;
        private bool doubleClickStarted;
        private DispatcherTimer doubleClickTimer;
        private const long DOUBLE_CLICK_INTERVAL = 2000000;

        public DCCanvas() : base(){    
            doubleClickStarted = false;
            doubleClickTimer = new DispatcherTimer();
            doubleClickTimer.Interval = new TimeSpan(DOUBLE_CLICK_INTERVAL);
            doubleClickTimer.Tick += new EventHandler(doubleClickTimer_Tick);
            MouseUp += new MouseButtonEventHandler(mouseUpReaction);
        }

        private void mouseUpReaction(object sender, MouseButtonEventArgs e){
            if(doubleClickStarted) { 
                doubleClickStarted =false; 
                if(MouseDoubleClick!=null)
                    MouseDoubleClick(sender, e);
            }
            else{ 
                doubleClickStarted =true;
                doubleClickTimer.Start();               
            }
        }
        private void doubleClickTimer_Tick(object sender, EventArgs e){
            doubleClickStarted = false; doubleClickTimer.Stop();
        }
    }
}

以上是我的Canvas类。您可以使用它来简化处理“画布”上的双击。它将在指定的时间间隔内每隔一个mouseUp触发一次（代码中为const DOUBLE_CLICK_INTERVAL）。在我看来并不是很难使用：

public partial class MainWindow : Window
{
    DCCanvas rusCanvas1;

    public MainWindow(){
        InitializeComponent();

            rusCanvas1 = new DCCanvas();
            /* Some code with properties for new rusCanvas */
            this.grid1.Children.Add(rusCanvas1);
            rusCanvas1.MouseDoubleClick += new MouseButtonEventHandler(canvas1_doubleClick);
    }
    private void canvas1_doubleClick(object sender, MouseButtonEventArgs e) { 
        MessageBox.Show(sender.ToString());
    }
}

如果您不想为Canvas编写属性，可以在类中添加构造函数 - copyer：

public DCCanvas(Canvas source) : base(){
        Margin = source.Margin;
        Style = source.Style;
        Height = source.Height;
        Width = source.Width;
        Background = source.Background;
        VerticalAlignment = source.VerticalAlignment;
        HorizontalAlignment = source.HorizontalAlignment;


        doubleClickStarted = false;
        doubleClickTimer = new DispatcherTimer();
        doubleClickTimer.Interval = new TimeSpan(DOUBLE_CLICK_INTERVAL);
        doubleClickTimer.Tick += new EventHandler(doubleClickTimer_Tick);
        MouseUp += new MouseButtonEventHandler(mouseUpReaction);
    }

Oky，现在你可以在可视化编辑器中创建你的画布，然后像这样写：

            rusCanvas1 = new DCCanvas(c1); 
// "c1" is a name of your pre-created standard Canvas.
            this.grid1.Children.Add(rusCanvas1);
            this.grid1.Children.Remove(c1);

只需复制并删除旧的。

我写了这个课程，因为我希望这个功能可用作标准。我的意思是，Canvas（以及所有其他控件和对象！）必须能够在没有额外编码的情况下对其进行双击...

Answer 4

Window，UserControl和许多基于控件的元素现在都支持MouseDoubleClick事件。我正在使用VS2017，并扩展到.net 4.7.1，但也许比它更旧。

https://docs.microsoft.com/en-us/dotnet/api/system.windows.controls.control.mousedoubleclick?view=netframework-4.7.2

双击WPF窗口边框上的事件

4 个答案: