i'm currently creating a Metro Style Application and want to use the FlipView control to work like the tab control in WPF and winforms, please can any one help me ?
You would put FlipViewItems in the FlipView the same way you'd put TabItems in a TabControl. To add tabs - you could have a StackPanel with TextRadioButtonStyled RadioButtons that have their check states synchronized with the FlipView selection state. Alternatively you could have a heavily styled ListView for the headers bar.
i solved it by editing the flipviewitem template and making its view like the wanted tab page view. Then i added a button on the top of every item to activate it.
We don't have Tab Control in WP8.1 but we can customize using FlipView. Flip View has a property selected index so we can set which view we want.
Create a xaml page, for example MainPage.xaml
For Tab Header
<Border BorderThickness="0,0,0,1" BorderBrush="White" >
<Grid Grid.Row="0" Background="Black" x:Name="navigateHead" >
<TextBlock x:Name="appbarSports" Text="Sports" Tapped="appbarSports_Tapped" TextAlignment="Center" Width="80" Margin="0,34,320,7" />
<TextBlock x:Name="appbarCars" Text="Cars" Tapped="appbarCars_Tapped" Margin="160,34,160,7" TextAlignment="Center" />
<TextBlock x:Name="appbarHomes" Text="Homes" Tapped="appbarHomes_Tapped" Margin="80,34,240,7" TextAlignment="Center" />
<Image x:Name="imgLine0" Source="ms-appx:///Images/white.png" Width="80" Height="3" Stretch="Fill" Margin="0,55,320,1" ></Image>
<Image x:Name="imgLine1" Source="ms-appx:///Images/white.png" Width="80" Height="3" Stretch="Fill" Margin="81,55,239,1" Visibility="Collapsed" />
<Image x:Name="imgLine2" Source="ms-appx:///Images/white.png" Width="80" Height="3" Stretch="Fill" Margin="162,55,158,1" Visibility="Collapsed" />
</Grid>
</Border>
For Flip view XAML code is
<Grid Grid.Row="1" >
<FlipView x:Name="flipControl" SelectionChanged="flipControl_SelectionChanged" >
<FlipViewItem >
<ListView x:Name="listViewForSports" >
<ListView.ItemTemplate>
<DataTemplate>
<Image Stretch="Fill" Source="{Binding SportsImage}"></Image>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</FlipViewItem>
<FlipViewItem >
<ListView x:Name="listViewForHomes">
<ListView.ItemTemplate>
<DataTemplate>
<Image Source="{Binding HomesImage}" Stretch="Fill"></Image>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</FlipViewItem>
<FlipViewItem >
<ListView x:Name="listViewForCars">
<ListView.ItemTemplate>
<DataTemplate>
<Image Source="{Binding CarsImage}" Stretch="Fill"></Image>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</FlipViewItem>
</FlipView>
</Grid>`
and write in code behind file MainPage.xaml.cs
Just initialize these globally:
public sealed partial class MainPage : Page
{
List<Sports> listOfSports;
List<Cars> listOfCars;
List<Homes> listOfHomes;
public MainPage()
{
this.InitializeComponent();
this.NavigationCacheMode = NavigationCacheMode.Required;
}
bind data to the FlipView control when page is initialized
protected override void OnNavigatedTo(NavigationEventArgs e)
{
flipControl.SelectedIndex = 0;
// TODO: Prepare page for display here.
// TODO: If your application contains multiple pages, ensure that you are
// handling the hardware Back button by registering for the
// Windows.Phone.UI.Input.HardwareButtons.BackPressed event.
// If you are using the NavigationHelper provided by some templates,
// this event is handled for you.
GetData();
}
This method will bind
public void GetData()
{
listOfSports = new List<Sports>();
for (int i = 1; i < 9; i++)
{
listOfSports.Add(new Sports() { SportsImage = #"ms-appx:///Images/Sports/image" + i.ToString() + ".jpg" });
}
listViewForSports.ItemsSource = listOfSports;
listOfCars = new List<Cars>();
for (int i = 1; i < 14; i++)
{
listOfCars.Add(new Cars() { CarsImage = #"ms-appx:///Images/Cars/image" + i.ToString() + ".jpg" });
}
listViewForCars.ItemsSource = listOfCars;
listOfHomes = new List<Homes>();
for (int i = 1; i < 9; i++)
{
listOfHomes.Add(new Homes() { HomesImage = #"ms-appx:///Images/Homes/image" + i.ToString() + ".jpg" });
}
listViewForHomes.ItemsSource = listOfHomes;
}
public class Cars
{
public string CarsImage { get; set; }
}
public class Sports
{
public string SportsImage { get; set; }
}
public class Homes
{
public string HomesImage { get; set; }
}`
I did with tap event to navigation withing flip view` private void appbarSports_Tapped(object sender, TappedRoutedEventArgs e)
{
// TextBlock a = sender as TextBlock;
// imgLine0.Margin = new Thickness(a.Margin.Left, 55, a.Margin.Right, 1);
flipControl.SelectedIndex = 0;
method(0);
}
private void appbarCars_Tapped(object sender, TappedRoutedEventArgs e)
{
// TextBlock a = sender as TextBlock;
//imgLine0.Margin = new Thickness(a.Margin.Left, 55, a.Margin.Right, 1);
flipControl.SelectedIndex = 2;
method(2);
}
private void appbarHomes_Tapped(object sender, TappedRoutedEventArgs e)
{
// TextBlock a = sender as TextBlock;
// imgLine0.Margin = new Thickness(a.Margin.Left, 55, a.Margin.Right, 1);
flipControl.SelectedIndex = 1;
method(1);
}
I also used for when the user flips so I used FlipView.SelectionChanged event
private void flipControl_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
FlipView viewControl = sender as FlipView;
int a = viewControl.SelectedIndex;
method(a);
}
This method() is help full for changing imageLine position
public void method(int a)
{
if (imgLine0 != null)
{
switch (a)
{
case 0:
imgLine0.Visibility = Visibility.Visible;
imgLine1.Visibility = Visibility.Collapsed;
imgLine2.Visibility = Visibility.Collapsed;
break;
case 1:
imgLine0.Visibility = Visibility.Collapsed;
imgLine1.Visibility = Visibility.Visible;
imgLine2.Visibility = Visibility.Collapsed;
break;
case 2:
imgLine0.Visibility = Visibility.Collapsed;
imgLine1.Visibility = Visibility.Collapsed;
imgLine2.Visibility = Visibility.Visible;
break;
}
}
}
Related
I added a button to player from PlayerFramework, when click that button, a ListView appear for select video quality.
But I dont know how to implement ItemClicked event to handle when user click a item in ListView. Anyone can help me?
My code:
Entertainment.xaml
<AppBarButton x:Name="QualityButton"
Grid.Column="3"
Width="30"
Height="30"
Margin="8,0,8,0"
Icon="Setting"
Style="{TemplateBinding TransportBarButtonStyle}"
Visibility="Visible">
<AppBarButton.Flyout>
<Flyout>
<ListView Name="listView"
IsItemClickEnabled="True"
ItemsSource="{Binding List}">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding}" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Flyout>
</AppBarButton.Flyout>
</AppBarButton>
CustomInteractiveViewModel.cs
public class CustomInteractiveViewModel : InteractiveViewModel
{
public CustomInteractiveViewModel(List<string> list, MediaPlayer player)
: base(player)
{
List = list;
}
public List<string> List { get; set; }
}
MainPage.cs
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
var list = new List<string> { "360p", "480p", "720p" };
player.InteractiveViewModel = new CustomInteractiveViewModel(list, player);
player.Source = new Uri(Video, UriKind.RelativeOrAbsolute);
}
MainPage.xaml
<Page x:Class="testPlayer.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="using:testPlayer"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:mmppf="using:Microsoft.PlayerFramework"
xmlns:webvtt="using:Microsoft.PlayerFramework.WebVTT"
mc:Ignorable="d">
<Page.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="Themes/Entertainment.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<mmppf:MediaPlayer Name="player" />
</Grid>
</Page>
It is not supported to binding event like ItemClick or SelectionChanged in ResourceDictionary, a simple method is to create the code behind of this ResourceDictionary, but to maintain the MVVM pattern integrity, it's better to register a Attached property, and bind events to this attached property.
You can change your code in Entertainment.xaml like this:
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:controls="using:Microsoft.PlayerFramework.Controls"
xmlns:local="using:Microsoft.PlayerFramework">
...
<AppBarButton x:Name="QualityButton" Grid.Column="3" Width="30" Height="30" Margin="8,0,8,0"
Icon="Setting" Style="{TemplateBinding TransportBarButtonStyle}" Visibility="Visible">
<AppBarButton.Flyout>
<Flyout>
<ListView Name="listView" IsItemClickEnabled="True" ItemsSource="{Binding List}" controls:CustomInteractiveViewModel.ItemClickCommand="{Binding ItemClickedCommand}">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding}" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Flyout>
</AppBarButton.Flyout>
</AppBarButton>
...
</ResourceDictionary>
and the code in CustomInteractiveViewModel.cs:
public class CustomInteractiveViewModel : InteractiveViewModel
{
public CustomInteractiveViewModel(List<string> list, MediaPlayer player, DelegateCommand<string> itemclickedcommand)
: base(player)
{
List = list;
ItemClickedCommand = itemclickedcommand;
}
public List<string> List { get; set; }
public DelegateCommand<string> ItemClickedCommand { get; set; }
public static DependencyProperty ItemClickCommandProperty =
DependencyProperty.RegisterAttached("ItemClickCommand",
typeof(ICommand),
typeof(CustomInteractiveViewModel),
new PropertyMetadata(null, OnItemClickCommandChanged));
public static void SetItemClickCommand(DependencyObject target, ICommand value)
{
target.SetValue(ItemClickCommandProperty, value);
}
public static ICommand GetItemClickCommand(DependencyObject target)
{
return (ICommand)target.GetValue(ItemClickCommandProperty);
}
private static void OnItemClickCommandChanged(DependencyObject target,
DependencyPropertyChangedEventArgs e)
{
var element = target as ListViewBase;
if (element != null)
{
if ((e.NewValue != null) && (e.OldValue == null))
{
element.ItemClick += OnItemClick;
}
else if ((e.NewValue == null) && (e.OldValue != null))
{
element.ItemClick -= OnItemClick;
}
}
}
private static void OnItemClick(object sender, ItemClickEventArgs e)
{
GetItemClickCommand(sender as ListViewBase).Execute(e.ClickedItem);
}
}
Finally in your MainPage.cs:
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
var list = new List<string> { "360p", "480p", "720p" };
var ItemClickedCommand = new DelegateCommand<string>(ItemClicked);
player.InteractiveViewModel = new CustomInteractiveViewModel(list, player, ItemClickedCommand);
}
public void ItemClicked(string item)
{
//TODO:
}
And the DelegateCommand<T> class is like this:
public class DelegateCommand<T> : ICommand
{
private readonly Action<T> _execute;
private readonly Func<T, bool> _canExecute;
public event EventHandler CanExecuteChanged;
public DelegateCommand(Action<T> execute, Func<T, bool> canexecute = null)
{
if (execute == null)
throw new ArgumentNullException(nameof(execute));
_execute = execute;
_canExecute = canexecute ?? (e => true);
}
public bool CanExecute(object p)
{
try { return _canExecute(ConvertParameterValue(p)); }
catch { return false; }
}
public void Execute(object p)
{
if (!this.CanExecute(p))
return;
_execute(ConvertParameterValue(p));
}
private static T ConvertParameterValue(object parameter)
{
parameter = parameter is T ? parameter : Convert.ChangeType(parameter, typeof(T));
return (T)parameter;
}
public void RaiseCanExecuteChanged()
{
CanExecuteChanged?.Invoke(this, EventArgs.Empty);
}
}
Sorry if this is a dumb question. I am maintaining this crazy Windows Phone 8.1 RT dynamic app that I didn't write. It loads up a whole bunch of stuff to the DataContext. Things that aren't visible on the screen don't seem to get their DataContext. When I navigate away from the form the event fires. What do I need to do to fix that? Even when it scrolls into view it doesn't load. If I scoll up and click the back button I see the field populate before it goes to the previous page.
Edit - Here is some code:
<DataTemplate x:Key="com.somecompany.BarcodeboxRenderer">
<Grid HorizontalAlignment="Stretch" DataContext="{Binding Item1}">
<Grid.RowDefinitions>
<RowDefinition Height="auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding Label}" HorizontalAlignment="Stretch" Style="{StaticResource labelstyle}" Grid.Row="0" />
<somecompany:BarcodeBox IsReadOnly="{Binding DisplayOnly}" somecompany:DynamicDataBindingPath.BindingPath="{Binding FieldId}" Grid.Row="1" />
</Grid>
</DataTemplate>
That calls this but only if it's visible:
public sealed class DynamicDataBindingPath:FrameworkElement
{
public static readonly DependencyProperty BindingPathProperty = DependencyProperty.RegisterAttached("BindingPath", typeof(string), typeof(DynamicDataBindingPath), new PropertyMetadata("", OnBindingPathPropertyChanged));
public static string GetBindingPath(FrameworkElement target)
{
try
{
return (string)target.GetValue(BindingPathProperty);
}
catch (Exception)
{
return string.Empty;
}
}
public static void SetBindingPath(FrameworkElement target, string value)
{
target.SetValue(BindingPathProperty, value);
target.Loaded += Target_Loaded;
}
private static void Target_Loaded(object sender, RoutedEventArgs e) {
var target = (FrameworkElement)sender;
if (target is ...) { ... }
else if (target is DatePicker)
{
int startingletterindex = value.IndexOf('.') + 1;
string pathtobindto = "obj." + Char.ToUpper(value[startingletterindex]) + value.Substring((startingletterindex + 1));
Binding newbind = new Binding();
newbind.Path = new PropertyPath(pathtobindto);
var contextsrc = findRealDataContext(target);
newbind.Source = contextsrc.DataContext;
newbind.Mode = BindingMode.TwoWay;
(target as DatePicker).SetBinding(DatePicker.DateProperty, newbind);
}
else if (...)
}
I turned of ListView Virtualization and it works now. I don't need it because there will never be more than a handful of rows.
I experience an issue when i try to use a command to open a Second View Model V4.0.Beta5.
I followed the Exemple described in N+1 Video series https://www.youtube.com/playlist?list=PLR6WI6W1JdeYSXLbm58jwAKYT7RQR31-W
First ViewModel
public class FirstViewModel
: MvxViewModel
{
private string _hello = "Hello MvvmCross";
public string Hello
{
get { return _hello; }
set
{
_hello = value;
RaisePropertyChanged(() => Hello);
}
}
private Cirrious.MvvmCross.ViewModels.MvxCommand _goSecondViewCommand;
public System.Windows.Input.ICommand GoSecondViewCommand
{
get
{
_goSecondViewCommand = _goSecondViewCommand ??
new Cirrious.MvvmCross.ViewModels.MvxCommand(DoGoSecondView);
return _goSecondViewCommand;
}
}
private void DoGoSecondView()
{
base.ShowViewModel<SecondViewModel>();
}
}
Second View model
public class SecondViewModel :MvxViewModel
{
private string _hello2 = "Hello2 MvvmCross";
public string Hello2
{
get { return _hello2; }
set
{
_hello2 = value;
RaisePropertyChanged(() => Hello2);
}
}
}
First View
<views:MvxWindowsPage
x:Class="TestCommand.UWP.Views.FirstView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:TestCommand.UWP"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:views="using:Cirrious.MvvmCross.WindowsUWP.Views"
mc:Ignorable="d">
<Grid>
<TextBox x:Name="textBox" HorizontalAlignment="Left" Margin="70,92,0,0" TextWrapping="Wrap" Text="FirstView" VerticalAlignment="Top" Width="223"/>
<Button x:Name="button" Command="{Binding GoSecondViewCommand}" Content="Button" HorizontalAlignment="Left" Height="108" Margin="70,346,0,0" VerticalAlignment="Top" Width="223"/>
</Grid>
Second view
<views:MvxWindowsPage
x:Class="TestCommand.UWP.Views.SecondView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:TestCommand.UWP.Views"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:views="using:Cirrious.MvvmCross.WindowsUWP.Views"
mc:Ignorable="d"
d:DesignHeight="300"
d:DesignWidth="400">
<Grid />
Setup Class:
public class Setup : MvxWindowsSetup
{
public Setup(Frame rootFrame) : base(rootFrame)
{
}
protected override IMvxApplication CreateApp()
{
return new TestCommand.Core.App();
}
}
If you want you can download the solution Here:
https://onedrive.live.com/redir?resid=A5D9789788DE33CB!36079&authkey=!AKs9nsG28iI6nQQ&ithint=file%2czip.
The possible reason is you don't use Setup correctly in your UWP app, here is what I do to make this work:
1) Create two ViewModels in the UWP app: FirstViewModel and SecondViewModel
2) Create a Setup class in Setup.cs file:
public class Setup : MvxWindowsSetup
{
public Setup(Frame rootFrame) : base(rootFrame)
{
}
protected override IMvxApplication CreateApp()
{
return new AppSetup();
}
}
public class AppSetup : MvxApplication
{
public override void Initialize()
{
RegisterAppStart<FirstViewModel>();
}
}
3) FirstView.xaml:
<StackPanel>
<TextBox x:Name="textBox" HorizontalAlignment="Left" Margin="70,92,0,0" TextWrapping="Wrap" Text="FirstView" VerticalAlignment="Top" Width="223"/>
<TextBlock Height="50" Text="{Binding Hello}" />
<Button x:Name="button" Command="{Binding GoSecondViewCommand}" Content="Button" HorizontalAlignment="Left" VerticalAlignment="Top" Width="223" Height="50" />
</StackPanel>
4) SecondView.xaml:
<StackPanel>
<TextBox x:Name="textBox" HorizontalAlignment="Left" Margin="70,92,0,0" TextWrapping="Wrap" Text="SecondView" VerticalAlignment="Top" Width="223"/>
<TextBlock Height="50" Text="{Binding Hello2}" />
</StackPanel>
5) In App.xaml.cs file, make the following changes in OnLaunched method:
protected override void OnLaunched(LaunchActivatedEventArgs e)
{
......
if (rootFrame.Content == null)
{
var setup = new Setup(rootFrame);
setup.Initialize();
var start = Mvx.Resolve<IMvxAppStart>();
start.Start();
}
// Ensure the current window is active
Window.Current.Activate();
}
By the way, the MvvmCross version is 3.5.1
Check the Completed sample on Github
Update for exception in OnNavigationFailed method:
Please comment this line in FirstView and SecondView's code behind:
ViewModel = new FirstViewModel();
ViewModel = new SecondViewModel();
The MvvmCross has set the ViewModel automatically.
I am writing a windows 8 store application and have the following problem:
I have a textblock binded to a long property of an object.
The long value is 123456789, however, on the screen i only see the char 1.
How can i solve this, and why the convertion to string doesn't work like it should?
Try this and let me if it works for you or not.
XAML
<Page.DataContext>
<local:myVm />
</Page.DataContext>
<Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
<GridView ItemsSource="{Binding col}">
<GridView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding}" Margin="20" FontSize="20" />
</DataTemplate>
</GridView.ItemTemplate>
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<WrapGrid MaximumRowsOrColumns="3" />
</ItemsPanelTemplate>
</GridView.ItemsPanel>
</GridView>
</Grid>
myVm.cs
public class myVm : INotifyPropertyChanged
{
public myVm()
{
col.Add(long.MaxValue);
col.Add(long.MaxValue);
col.Add(long.MaxValue);
col.Add(long.MaxValue);
col.Add(long.MaxValue);
col.Add(long.MaxValue);
}
private ObservableCollection<long> _col = new ObservableCollection<long>();
public ObservableCollection<long> col
{
get { return _col; }
set
{
_col = value;
NotifyPropertyChanged("col");
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void NotifyPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this,
new PropertyChangedEventArgs(propertyName));
}
}
}
I am having some problems making a long list selector load my data, and i have been unable to find a solution to this problem.
This is my xaml:
<phone:LongListSelector x:Name="animeList"
Margin="0,0,-12,0"
ItemsSource="{Binding Animes}"
Tap="AnimeList_OnTap">
<phone:LongListSelector.ItemTemplate>
<DataTemplate>
<StackPanel Margin="0,0,0,17">
<TextBlock Text="{Binding Name}" TextWrapping="Wrap" Style="{StaticResource PhoneTextExtraLargeStyle}">
<toolkit:ContextMenuService.ContextMenu>
<toolkit:ContextMenu IsZoomEnabled="false">
<toolkit:MenuItem Header="Add as favorit" Click="AddFavorite" />
</toolkit:ContextMenu>
</toolkit:ContextMenuService.ContextMenu>
</TextBlock>
</StackPanel>
</DataTemplate>
</phone:LongListSelector.ItemTemplate>
</phone:LongListSelector>
My view model is simple:
public ObservableCollection<AnimeItemViewModel> _animes { get; set; }
public ObservableCollection<AnimeItemViewModel> Animes
{
get { return _animes; }
set
{
if (value != _animes)
{
_animes = value;
NotifyPropertyChanged("Animes");
}
}
}
And how i load my data:
public MainPage()
{
InitializeComponent();
DataContext = App.ViewModel;
this.Loaded += OnLoaded;
}
private void OnLoaded(object sender, RoutedEventArgs routedEventArgs)
{
ObservableCollection<AnimeItemViewModel> _animes = new ObservableCollection<AnimeItemViewModel>();
foreach (var i in App.AnimeList.List)
_animes.Add(new AnimeItemViewModel() { AId = i.AId, Name = i.Name });
App.ViewModel.Animes = _animes;
}
And lastly just to show that there are data in the list
Update: I also have a search function, and if i enter a search text will the longlist update, but i am for some reason unable to scroll
private void OnKeyDown(object sender, System.Windows.Input.KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
ObservableCollection<AnimeItemViewModel> _animes = new ObservableCollection<AnimeItemViewModel>();
foreach (var i in App.AnimeList.List)
if (string.IsNullOrWhiteSpace(SearchTextBox.Text) || i.Name.ToLower().Contains(SearchTextBox.Text.ToLower()))
_animes.Add(new AnimeItemViewModel() { AId = i.AId, Name = i.Name });
App.ViewModel.Animes = _animes;
}
}
Try placing your loading code in OnNavigatedTo. As for the scrolling issue - setting a proper height to the StackPanel. Let me know if it works.