右键双击和上下文菜单

Question

相关问题（详细信息）

隧道事件和 ContextMenu

我有一个与 ContextMenu 关联的 WPF 画布..

这很酷。现在我必须对 Right DoubleClick 执行一些操作...

事实上，我从未收到 Right mouse ClickCount == 2...

该怎么办？
我需要在简单（右键）单击时显示 ContextMenu，并执行 Action2 OnRightDoubleClick..

protected override void OnPreviewMouseRightButtonUp(MouseButtonEventArgs e)
{
    if (e.ClickCount == 1)
    {
        #region SINGLE CLICK
        stillSingleClick = true;
        Thread thread = new Thread(
            new System.Threading.ThreadStart(
                delegate()
                {
                    Thread.Sleep(System.Windows.Forms.SystemInformation.DoubleClickTime);
                    this.Dispatcher.Invoke(
                        System.Windows.Threading.DispatcherPriority.Background,
                        new Action(
                            delegate()
                            {
                                if (stillSingleClick)
                                {
                                    base.OnPreviewMouseRightButtonUp(e);
                                }
                                stillSingleClick = false;
                            }
                    ));
                }
        ));
        thread.Start();
        #endregion SINGLE CLICK
    }
    else if (e.ClickCount == 2)
    {
        stillSingleClick = false;
        base.OnPreviewMouseRightButtonUp(e);
    }
}

Answer 1

MouseButtonEventArgs.ClickCount 将始终为 1，因为您处理的是向上事件而不是向下事件。 PreviewUp 和 Up 都始终为 1。单击行为通常定义为相应按钮的按下事件。

Answer 2

在 MouseDoubleClickEvent 中执行此操作

if (e.ChangedButton == MouseButton.Right)
{
     //do something with Mouse Right Double Click
}

Answer 3

在 MSDN 上查看此示例：

private void OnMouseDownClickCount(object sender, MouseButtonEventArgs e)
{
    //Handle only right clicks
    if (e.RightButton != MouseButtonState.Pressed) return;

    // Checks the number of clicks.
    if (e.ClickCount == 1)
    {
        // Single Click occurred.
        lblClickCount.Content = "Single Click";
    }
    if (e.ClickCount == 2)
    {
        // Double Click occurred.
        lblClickCount.Content = "Double Click";
    }
    if (e.ClickCount >= 3)
    {
        // Triple Click occurred.
        lblClickCount.Content = "Triple Click";
    }
}