async private void gotoMainPage_Click(object sender, RoutedEventArgs e)
{
// Switch to the main view without explicitly requesting
// that this view be hidden.
thisViewControl.StartViewInUse();
await ApplicationViewSwitcher.SwitchAsync(mainViewId);
thisViewControl.StopViewInUse();
}
async private void showView_Click(object sender, RoutedEventArgs e)
{
try
{
// Prevent the view from closing while switching to it
ViewLifetimeController selectedView = viewList.SelectedItem as ViewLifetimeController;
selectedView.StartViewInUse();
// Show the previously created secondary view, using the size
// preferences the user specified.
bool isViewShown = await ApplicationViewSwitcher.TryShowAsStandaloneAsync(
selectedView.Id, ViewSizePreference.Default,
ApplicationView.GetForCurrentView().Id, ViewSizePreference.Default);
if (isViewShown)
{
// If we succefully showed the view, make sure we update our internal state
// to reflect that the view is no longer consolidated.
selectedView.Consolidated = false;
status.Log(string.Format(CultureInfo.CurrentCulture,
LocalizableStrings.MULTIVIEW_SHOW_VIEW_SUCCESS, selectedView.Title));
}
else
{
// The window wasn't actually shown, so release the reference to it.
// This might trigger the window to be destroyed.
status.Log(LocalizableStrings.MULTIVIEW_SHOW_VIEW_FAIL);
}
// Signal that switching has completed and let the view close
selectedView.StopViewInUse();
}
catch (InvalidOperationException ex)
{
// The view could be in the process of closing, and
// this thread just hasn't updated. As part of being closed,
// this thread will be informed to clean up its list of
// views (see SecondaryViewPage.xaml.cs).
Debug.WriteLine("MultiViewPage.showView_Click: " + ex.ToString());
status.Log(ex.Message);
}
}