WPF按钮需要两次点击来触发Click事件 [英] WPF button takes two clicks to fire Click event

问题描述

我有一个TabItem包含一个日历控件和一个按钮。问题是，当日历的选定日期与之前选择的日期相同时，该按钮需要两次点击来触发其Click事件。

I have a TabItem which contains a calendar control and a button. The issue is that when the calendar's selected date is the same as the previously selected date, the button takes two clicks to fire its Click event.

我实现了selectedDatesChanged事件的日历来解决这个问题，当前选择的日期不同于以前的选择。代码如下：

I have implemented the selectedDatesChanged event of the calendar to solve this problem when the current selected date is different from the previous selection. The code is as below:

selectedDatesChanged(object sender, SelectionChangedEventArgs e)
{
    this.CaptureMouse();
    this.ReleaseMouseCapture();
}

我要找的是一种方法，当日历的selectedDate与以前选择的日期没有不同时，上述功能。
我尝试处理GotFocus和MouseUp事件，但它不能解决问题。

What I'm looking for is a way to have the same effect shown in the above function when the selectedDate of the calendar does not differ from the previously selected date. I tried handling the GotFocus and MouseUp events, but it doesn't solve the problem.

有没有人有任何想法如何解决这个问题？

Does anyone have any ideas on how I could solve this issue?

感谢您，
Naveen

Thanks, Naveen

推荐答案

最好的答案我在网上找到。它仍然不完美，因为它不能帮助标记为IsDefault或IsCancel

This was the best answer I found on the web. It's still not perfect because it doesn't help with buttons that are marked as IsDefault or IsCancel

protected override void OnPreviewMouseUp(MouseButtonEventArgs e)
{
  base.OnPreviewMouseUp(e);
  if (Mouse.Captured is Calendar || Mouse.Captured is System.Windows.Controls.Primitives.CalendarItem)
  {
    Mouse.Capture(null);
  }
}

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