private void GoBack()
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
_messenger.Register <CloseDashboard>(this, _ => DashboardPopup.Hide());
_messenger.Register <NavigatedToOperation>(this, msg =>
{
switch (msg.NavigationMode)
{
case NavigationMode.New:
if (msg.Operation == null)
{
ContentFrame.Navigate(typeof(ApiInfoPage), SessionManagerVM.CurrentDocument);
}
else
{
ContentFrame.Navigate(typeof(SwaggerOperationPage), msg.Operation);
}
break;
case NavigationMode.Back: ContentFrame.GoBack(); break;
case NavigationMode.Forward: ContentFrame.GoForward(); break;
}
OperationsListView.SelectedItem = msg.Operation;
});
KeyDown += OnKeyDown;
SystemNavigationManager.GetForCurrentView().BackRequested += OnBackRequested;
}
private void nvSample_BackRequested(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewBackRequestedEventArgs args)
{
if (ContentFrame.CanGoBack == true)
{
ContentFrame.GoBack();
}
}
private void BackBtn_OnClick(object sender, RoutedEventArgs e)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
private void _HamburgerView_BackButtonClick(object sender, RoutedEventArgs e)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack(new SuppressNavigationTransitionInfo());
}
}
void HBPervious_Click(object sender, RoutedEventArgs e)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
private void NavView_OnBackRequested(Windows.UI.Xaml.Controls.NavigationView sender, NavigationViewBackRequestedEventArgs args)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
/// <summary>
/// Handles the Navigation Request
/// </summary>
/// <param name="message">The Navigation goback request</param>
public virtual void Handle(GoBackNavigationRequest message)
{
// Check, if we can go back
if (!CanGoBack)
{
return;
}
#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
// Now Go Back
if (CurrentPage.Dispatcher.HasThreadAccess)
{
// When going back, delete an potential error and clear the state
if (CurrentPage.DataContext is ViewModelBase baseModel && baseModel.IsDefective)
{
baseModel.Error = string.Empty;
}
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
else
{
CurrentPage.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => Handle(message));
}
#pragma warning restore CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
}
private void BackButton_Click(object sender, RoutedEventArgs e)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
if (ContentFrame.SourcePageType == typeof(HomePage))
{
HomeNav.IsChecked = true;
}
else if (ContentFrame.SourcePageType == typeof(CarsPage))
{
CarsNav.IsChecked = true;
}
else if (ContentFrame.SourcePageType == typeof(DevicesPage))
{
DevicesNav.IsChecked = true;
}
else if (ContentFrame.SourcePageType == typeof(ProfilePage))
{
ProfileNav.IsChecked = true;
}
else if (ContentFrame.SourcePageType == typeof(SettingsPage))
{
SettingsNav.IsChecked = true;
}
}
}
private void NavView_ItemInvoked(NavigationView sender, NavigationViewItemInvokedEventArgs args)
{
// 本函数处理左侧导航栏点击事件
// 寻找点击的Item
var item = sender.MenuItems.OfType <NavigationViewItem>().First(x => (string)x.Content == (string)args.InvokedItem);
NavView_Navigate(item as NavigationViewItem);
// 处理右侧Frame跳转逻辑
if (ContentFrame.CurrentSourcePageType != typeof(NavigatorPage))
{
if (ContentFrame.CurrentSourcePageType != typeof(NewPage) || !ContentFrame.CanGoBack)
{
ContentFrame.Navigate(typeof(NavigatorPage));
}
else
{
ContentFrame.GoBack();
}
}
else if (ContentFrame.Visibility == Visibility.Visible)
{
ContentFrame.Visibility = Visibility.Collapsed;
}
else
{
ContentFrame.Visibility = Visibility.Visible;
}
}
private void ContentFrame_OnNavigationFailed(object sender, NavigationFailedEventArgs e)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
private void MainPage_BackRequested(object sender, BackRequestedEventArgs e)
{
if (!ContentFrame.CanGoBack)
{
e.Handled = true;
}
else
{
ContentFrame.GoBack();
if (ContentFrame.SourcePageType == typeof(SettingsPage))
{
NavView.SelectedItem = NavView.SettingsItem as NavigationViewItem;
}
else
{
Dictionary <Type, string> lookup = new Dictionary <Type, string>()
{
{ typeof(AccountPage), "account" },
{ typeof(DashboardPage), "dashboard" }
};
String stringTag = lookup[ContentFrame.SourcePageType];
foreach (NavigationViewItemBase item in NavView.MenuItems)
{
if (item is NavigationViewItem && item.Tag.Equals(stringTag))
{
item.IsSelected = true;
break;
}
}
}
}
}
private void NavigationView_OnBackRequested(NavigationView sender, NavigationViewBackRequestedEventArgs args)
{
if (ContentFrame.CanGoBack)
{
ViewModel.SelectedItem = null;
ContentFrame.GoBack(new SuppressNavigationTransitionInfo());
// Reset selected item when showing browsing views.
if (ContentFrame.Content is OfflineMapsView)
{
NavigationView.SelectedItem = LocalContentMenuItem;
}
if (ContentFrame.Content is PortalBrowserView)
{
NavigationView.SelectedItem = MyFoldersMenuItem;
}
if (ContentFrame.Content is PortalGroupView)
{
NavigationView.SelectedItem = MyGroupsMenuItem;
}
if (ContentFrame.Content is SearchPage)
{
NavigationView.SelectedItem = SearchMenuItem;
}
}
ContentFrame.BackStack.Clear();
}
private void NavView_BackRequested(NavigationView sender, NavigationViewBackRequestedEventArgs args)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
private void BackwardButton1_Click(object sender, RoutedEventArgs e)
{
if (ContentFrame.BackStackDepth > 0)
{
ContentFrame.GoBack();
}
}
private void Back_Click(object sender, RoutedEventArgs e)
{
if (!(ContentFrame.Content is ChatPage))
{
ContentFrame.GoBack();
}
}
private void NavigateBackward(object sender, RoutedEventArgs e)
{
if (ContentFrame.BackStackDepth() > 0)
{
ContentFrame.GoBack();
}
}
private void backButton_Tapped(object sender, TappedRoutedEventArgs e)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
Main.IsSelected = true;
}
}
private void backbtn_Click(object sender, RoutedEventArgs e)
{
forwardbtn.Visibility = Visibility.Visible;
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
private void ContentFrameBackToShell()
{
// 退到最上层
while (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
}
private void On_BackRequested(object sender, BackRequestedEventArgs e)
{
if (!e.Handled && ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
e.Handled = true;
}
}
private void OnBackRequested(object sender, BackRequestedEventArgs e)
{
if (ContentFrame.CanGoBack)
{
e.Handled = true;
ContentFrame.GoBack();
}
}
private void NavView_BackRequested(NavigationView sender, NavigationViewBackRequestedEventArgs args)
{
ContentFrame.GoBack();
ContentFrame.ContentRendered += delegate
{
var pageType = ContentFrame.Content.GetType();
NavView.Header = App.LocalizedStrings.Where(x => x.Key == pageType.Name + "Header")?.FirstOrDefault().Value;
};
}
public void GoBack(object parameter = null)
{
if (ContentFrame.BackStack.Count > 0)
{
ContentFrame.GoBack();
}
ViewModel.LoadProfiles();
}
private void BackRequested(object sender, BackRequestedEventArgs e)
{
//Frame rootFrame = Window.Current.Content as Frame;
//if (rootFrame == null)
// return;
//if (rootFrame.CanGoBack && e.Handled == false)
//{
// e.Handled = true;
//}
if (needtwoback)
{
ContentFrame.GoBack();
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
needtwoback = false;
}
else
{
ContentFrame.GoBack();
}
var currentFrame_back = (ContentFrame as Frame).CurrentSourcePageType.Name;
switch (currentFrame_back)
{
case "Main":
Main.IsSelected = true;
needtwoback = true;
break;
case "Camera":
Camera.IsSelected = true;
needtwoback = true;
break;
case "edit":
EditPhoto.IsSelected = true;
needtwoback = true;
break;
case "favorite":
Collection.IsSelected = true;
needtwoback = true;
break;
case "join":
Puzzle.IsSelected = true;
needtwoback = true;
break;
case "set":
break;
}
}
private void GoBack_Click(object sender, RoutedEventArgs e)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
GoBack.IsChecked = false;
}
private bool On_BackRequested()
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
return(true);
}
return(false);
}
private void NavigationView_BackRequested(NavigationView sender, NavigationViewBackRequestedEventArgs args)
{
if (ContentFrame.CanGoBack)
{
var context = DataContext as HomeViewModel;
context.FakeGoBack.Execute(); // MY BUG! not every time this works & I have now idea why
ContentFrame.GoBack();
}
}
public bool TryGoBack()
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
return(true);
}
return(false);
}
private void TopLevelNav_OnBackRequested(NavigationView sender, NavigationViewBackRequestedEventArgs args)
{
if (ContentFrame.CanGoBack)
{
ContentFrame.GoBack();
}
TopLevelNav.SelectedItem = ContentFrame.Content is SettingsPage ? null : TopLevelNav.MenuItems[0];
TopLevelNav.IsBackEnabled = ContentFrame.CanGoBack;
}
