WPF:计算鼠标绑定是单击还是双击
本文关键字:单击 双击 绑定 计算 鼠标 WPF | 更新日期: 2023-09-27 18:00:49
我在视图中使用Mousebindings来监听用户点击,如下所示:
<Path.InputBindings>
<MouseBinding Gesture="LeftDoubleClick" Command="{Binding DoubleLeftClickProj}" />
<MouseBinding Gesture="LeftClick" Command="{Binding SingleLeftClick}"/>
</Path.InputBindings>
我一次只需要一个鼠标手势。因此,如果我双击我的应用程序,我想忽略单次左键鼠标绑定。可能就像在最初的鼠标点击后等待1-2秒,然后决定应该调用哪个。有简单的方法吗?
我用下面的方式让它工作(我用了一个按钮来测试它,你必须调整它(。
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使用事件处理程序
<Button MouseDoubleClick="Button_MouseDoubleClick" Click="Button_Click"></Button>
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将DataContext存储在静态变量中
private static object context; public MainWindow() { InitializeComponent(); DataContext = new ViewModel(); context = DataContext; }
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改编这个代码(我主要是从https://stackoverflow.com/a/971676/4792869)
private static DispatcherTimer myClickWaitTimer = new DispatcherTimer( new TimeSpan(0, 0, 0, 1), DispatcherPriority.Background, mouseWaitTimer_Tick, Dispatcher.CurrentDispatcher); private void Button_MouseDoubleClick(object sender, MouseButtonEventArgs e) { // Stop the timer from ticking. myClickWaitTimer.Stop(); ((ICommand)DataContext).Execute("DoubleLeftClickProj"); e.Handled = true; } private void Button_Click(object sender, RoutedEventArgs e) { myClickWaitTimer.Start(); } private static void mouseWaitTimer_Tick(object sender, EventArgs e) { myClickWaitTimer.Stop(); // Handle Single Click Actions ((ICommand)context).Execute("SingleLeftClick"); }