void SetSelectedMenuItem(MenuItem item)
{
if (item == null || !item.IsSelectable)
return;
var menuListViews = GetMenuListViews(shellSplitView.Pane);
foreach (var menuListView in menuListViews)
{
foreach (var menuItem in menuListView.Items)
{
var container = menuListView.ContainerFromItem(item);
menuListView.SetSelectedItem(container as ListViewItem);
}
}
}
void OnNavigatedToPage(object sender, NavigationEventArgs e)
{
UpdateMenuItems();
selectedMenuItem = menuItems.SingleOrDefault(p => p.DestinationPage == e.SourcePageType.FullName &&
Equals(p.NavigationParameter, e.Parameter));
var snm = SystemNavigationManager.GetForCurrentView();
if (selectedMenuItem == null && AppFrame.BackStackDepth > 0)
{
foreach (var entry in AppFrame.BackStack.Reverse())
{
selectedMenuItem = menuItems.SingleOrDefault(p => p.DestinationPage == e.SourcePageType.FullName &&
Equals(p.NavigationParameter, e.Parameter));
if (selectedMenuItem != null)
break;
}
}
SetSelectedMenuItem(selectedMenuItem);
snm.AppViewBackButtonVisibility = AppFrame.CanGoBack ? AppViewBackButtonVisibility.Visible :
AppViewBackButtonVisibility.Collapsed;
}
