private void ClearDetailFrame()
{
while (DetailFrame.BackStackDepth >= 1)
{
if (DetailFrame.BackStackDepth == 1)
{
DetailFrame.GoBack();
break;
}
DetailFrame.BackStack.RemoveAt(DetailFrame.BackStackDepth - 1);
}
}
private void BackRequested(object sender, BackRequestedEventArgs e)
{
if (DetailFrame == null)
{
return;
}
if (DetailFrame.CanGoBack && e.Handled == false)
{
e.Handled = true;
DetailFrame.GoBack();
}
}
private void View_BackRequested(object sender, BackRequestedEventArgs e)
{
if (DetailFrame.CanGoBack)
{
DetailFrame.GoBack();
e.Handled = true;
}
else if (MasterFrame.CanGoBack)
{
MasterFrame.GoBack();
e.Handled = true;
}
}
//check
private async void Button_Click(object sender, RoutedEventArgs e)
{
if (DetailFrame.CanGoBack)
{
if (DetailedCardPage.front.Visibility == Visibility.Visible)
{
await DetailedCardPage.SaveCard(true);
}
if (DetailedCardPage.back.Visibility == Visibility.Visible)
{
await DetailedCardPage.SaveCard(false);
}
DetailFrame.GoBack();
}
else
{
await exit();
}
}
public void GoBack(BackRequestedEventArgs e)
{
if (TertiaryFrameCanGoBack)
{
if (TertiaryFrame.CanGoBack)
{
TertiaryFrame.GoBack();
}
TertiaryFrameDepth--;
//若还可以继续后退，则显示，否则隐藏
}
else if (DetailFrameCanGoBack)
{
if (DetailFrame.CanGoBack)
{
DetailFrame.GoBack();
}
DetailFrameDepth--;
//DetailFrame.Visibility = DetailFrameCanGoBack ? Visibility.Visible : Visibility.Collapsed;
}
UpdateBackButton();
UpdateFrame();
}
private void _navigationViewBackRequested(object sender, RoutedEventArgs e)
{
DetailFrame.GoBack();
}