如何捕捉结束的调整大小窗口? [英] How to catch the ending resize window?

问题描述

我需要在 WPF 中捕获事件 endresize.

I need catch the event endresize in WPF.

推荐答案

WPF 不提供仅在调整大小过程结束时触发的事件.SizeChanged 是唯一与窗口大小调整相关的事件 - 它会在调整大小过程中多次触发.

WPF doesn't provide an event that solely fires at the end of the resize process. SizeChanged is the only event associated with Window resizing - and it will fire multiple times during the resizing process.

当 SizeChanged 事件触发时，一个总的技巧是不断地设置一个计时器滴答作响.然后计时器将不会有机会在调整大小结束之前打勾，然后进行一次性处理.

A total hack would be to constantly set a timer ticking when the SizeChanged event fires. Then timer will not get a chance to tick until resizing ends and at that point do your one time processing.

public MyUserControl()
{
    _resizeTimer.Tick += _resizeTimer_Tick;
}

DispatcherTimer _resizeTimer = new DispatcherTimer { Interval = new TimeSpan(0, 0, 0, 0, 1500), IsEnabled = false };

private void UserControl_SizeChanged(object sender, SizeChangedEventArgs e)
{
    _resizeTimer.IsEnabled = true;
    _resizeTimer.Stop();
    _resizeTimer.Start();
}

void _resizeTimer_Tick(object sender, EventArgs e)
{
    _resizeTimer.IsEnabled = false;    

    //Do end of resize processing
}

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