SplitView.PaneClosed事件可用，但不适用于PaneOpened [英] SplitView.PaneClosed event is available but not for PaneOpened

问题描述

根据 https://msdn.microsoft.com/zh-cn/library/windows/apps/windows.ui.xaml.controls.splitview.paneclosed.aspx SplitView控件没有PaneOpened事件，只有PaneClosed存在的SplitView控件的事件.

According to the https://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.controls.splitview.paneclosed.aspx there is no PaneOpened event for the SplitView control, only PaneClosed event for the SplitView control that exists.

我在SplitView窗格中有一个Button控件，该控件需要根据窗格是打开还是关闭来改变大小.因此，我的计划是放置一段代码，以在PaneOpened事件中将按钮的大小更改为更宽，然后在PaneClosed事件中将其恢复为较小的大小.但是似乎没有PaneOpened事件.

I have a Button control inside a SplitView pane that needs to change in size according whether the pane is opened or closed. So my plan is I will place a piece of code that will change the button size wider in the PaneOpened event, and restore it back to the small size in PaneClosed event. But it seems there is no PaneOpened event.

还有其他方法可以实现这一目标吗?

Any other way that I can achieve this?

推荐答案

感谢新的

Thanks to the new RegisterPropertyChangedCallback in UWP, you can now monitor property change events of any DependencyProperty, including native ones.

public SplitViewPage()
{
    this.InitializeComponent();

    this.splitView.RegisterPropertyChangedCallback(SplitView.IsPaneOpenProperty, IsPaneOpenPropertyChanged);
}

private void IsPaneOpenPropertyChanged(DependencyObject sender, DependencyProperty dp)
{
    // put your logic here
}

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