I want to scale text and image content.I want to an output like that :
But result like that:
My code is below. What is the problem?
<UserControl.Resources>
<DataTemplate x:Key="ImageTemplate" x:DataType="model:NoteBlock">
<Grid>
<Viewbox Stretch="UniformToFill" StretchDirection="Both" Grid.Row="0">
<ScrollViewer MinZoomFactor="1" MaxZoomFactor="3" VerticalScrollMode="Disabled" HorizontalScrollMode="Disabled">
<Image HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
Margin="0" Source="{x:Bind BlockData}" Holding="Image_Holding" PointerPressed="Image_PointerPressed" />
</ScrollViewer>
</Viewbox>
</Grid>
</DataTemplate>
<DataTemplate x:Key="TextTemplate" x:DataType="model:NoteBlock">
<Grid>
<Viewbox StretchDirection="Both" Stretch="Uniform" VerticalAlignment="Top">
<RichEditBox Name="richEditor" BorderThickness="0" l:RtfText.RichText="{x:Bind BlockData}" Margin="0" GotFocus="richEditor_GotFocus" >
</RichEditBox>
</Viewbox>
</Grid>
</DataTemplate>
<DataTemplate x:Key="GapTemplate">
<Grid Height="20" >
</Grid>
</DataTemplate>
<l:NoteTypeTemplateSelector x:Key="NoteTypeTemplateSelector"
TextTemplate="{StaticResource TextTemplate}"
ImageTemplate="{StaticResource ImageTemplate}"
GapTemplate="{StaticResource GapTemplate}"></l:NoteTypeTemplateSelector>
</UserControl.Resources>
<Grid Name="ContainerGrid" Background="White" PointerPressed="ContainerGrid_PointerPressed" >
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<ToggleSwitch Margin="0" Name="Mode" HorizontalAlignment="Right" OffContent="Read Mode" OnContent="Edit Mode"></ToggleSwitch>
<ListView x:Name="NoteList" Background="Transparent"
Grid.Row="1"
ItemsSource="{x:Bind ds}"
ItemTemplateSelector="{StaticResource NoteTypeTemplateSelector}"
ScrollViewer.VerticalScrollMode="Enabled">
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<ContentPresenter/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
</ListView>
<SwapChainPanel Name="DxPanel" Grid.Row="0"></SwapChainPanel>
</Grid>
</UserControl>
Could you please help about that?
You can try using one of the Transform for your "ImageTemplate" and "TextTemplate" to scale the image/Text.
https://learn.microsoft.com/en-us/windows/uwp/graphics/transforms-overview
I think ScaleTransform should solve your problem.
Related
Why my grid is not covering all the screen and how can i fix it? On the designer looks like it should be covering all the width of the screen, but actually leaves a big space on the rigth.
<Grid Background="GreenYellow">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="200"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
</Grid>
This code is only a snip, but even with childs the space its there on different sizes.
Edit 1:
Acoording to Luis C. answer i get the same result big empty space to the left:
I found a strange workaround to achieve what i want:
<Grid Background="Yellow">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="200"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<TextBlock Text="This is a very large text that only is used to strech all the childrens to the infinite. This is a very large text that only is used to strech all the childrens to the infinite. This is a very large text that only is used to strech all the childrens to the infinite. This is a very large text that only is used to strech all the childrens to the infinite. This is a very large text that only is used to strech all the childrens to the infinite" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
<Button Content="Black" Background="Black" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
</Grid>
<Button Grid.Row="1" Content="Black" Background="Gray" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
<Button Grid.Row="2" Content="Black" Background="Blue" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
</Grid>
The result is:
Still its a very strange way to workaround the problem.
Full Code
As you see, im using a SplitView on a GridView that loads Pages(like the one with the mentioned problem) on a Frame inside the SplitViewContent. Other Pages with TextBlock as childrens cover the whole screen as i want. The code for the SplitView is:
<Page
x:Class="MyProject.ViewModels.HomePage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MyProject.ViewModels"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<RelativePanel>
<Button Name="HamburgerButton" FontFamily="Segoe MDL2 Assets" Content="" FontSize="36" Click="HamburgerButton_Click" Background="LightGray"/>
<!--<Button Name="BackButton" FontFamily="Segoe MDL2 Assets" Content="" FontSize="36" Visibility="Visible" Background="LightGray"/>-->
<CommandBar Name="Bar" RelativePanel.AlignRightWithPanel="True" ClosedDisplayMode="Compact" RelativePanel.RightOf="HamburgerButton" Visibility="Visible" Background="LightGray" IsOpen="False" IsSticky="True" >
<CommandBar.Content>
<TextBlock Name="BarTitle" Text="Title" FontSize="24" Margin="24,8,0,12" HorizontalAlignment="Center" VerticalAlignment="Center" />
</CommandBar.Content>
</CommandBar>
</RelativePanel>
<SplitView Name="MySplitView"
Grid.Row="1"
DisplayMode="Overlay"
OpenPaneLength="200"
CompactPaneLength="56"
HorizontalAlignment="Left">
<SplitView.Pane>
<ListBox SelectionMode="Single"
Name="IconsListBox"
SelectionChanged="IconsListBox_SelectionChanged">
<ListBoxItem Name="SymbolsListBoxItem">
<StackPanel Orientation="Horizontal">
<Image Source="x" Width="36" Height="36" HorizontalAlignment="Center" VerticalAlignment="Center"> </Image>
<TextBlock x:Uid="Symbols" Text="[Symbols]" FontSize="24" Margin="20,0,0,0" />
</StackPanel>
</ListBoxItem>
</ListBox>
</SplitView.Pane>
<SplitView.Content >
<Frame Name="FrameHolder"></Frame>
</SplitView.Content>
</SplitView>
<Frame Name="HomePageFrame" >
<!-- Frame not used by now-->
</Frame>
</Grid>
The full code page snippet is(with more children) and the result the same, big blank empty space to the right:
<Page
x:Class="MyProject.ViewModels.SymbolsPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MyProject.ViewModels"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:data="using:MyProject.Models"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Page.Resources>
<Style TargetType="ListView" x:Key="myListViewStyle">
<Setter Property="AllowDrop" Value="False" />
<Setter Property="CanReorderItems" Value="False" />
<Setter Property="Width" Value="36"/>
<Setter Property="Height" Value="140"/>
<Setter Property="HorizontalAlignment" Value="Center"/>
<Setter Property="Padding" Value="0,4,0,0"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Hidden" />
<Setter Property="BorderBrush" Value="White" />
<Setter Property="BorderThickness" Value="1" />
</Style>
<Style TargetType="TextBlock" x:Key="SymbolViewer">
<Setter Property="FontFamily" Value="/Fonts/etc"/>
<Setter Property="FontSize" Value="30" />
<Setter Property="Padding" Value="8"/>
<Setter Property="TextAlignment" Value="Center"/>
<Setter Property="VerticalAlignment" Value="Center"/>
</Style>
<LinearGradientBrush x:Key="GradBackground" EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="LightGray" Offset="0"/>
<GradientStop Color="White" Offset=".5"/>
<GradientStop Color="LightGray" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ItemGradBackground" EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="White" Offset="0"/>
<GradientStop Color="White" Offset=".5"/>
<GradientStop Color="LightGray" Offset="1"/>
</LinearGradientBrush>
</Page.Resources>
<!-- Spinners -->
<StackPanel Background="AliceBlue" HorizontalAlignment="Stretch" Padding="0">
<StackPanel Background="{StaticResource GradBackground}" >
<StackPanel Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Center" >
<ListView Name="Uno" ItemsSource="{x:Bind UnoItems}" Style="{StaticResource myListViewStyle}" BorderBrush="White"
BorderThickness="2" IsItemClickEnabled="True" ItemClick="Uno_ItemClick">
<ListView.ItemTemplate >
<DataTemplate x:DataType="data:Thingy">
<TextBlock Text="{x:Bind Symbol}" FontFamily="/Fonts/etc"></TextBlock>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<!-- Not user interactive-->
<TextBlock Text="0" Width="36" HorizontalAlignment="Center" VerticalAlignment="Center" TextAlignment="Center" ></TextBlock>
<!-- Spinner 2 -->
<ListView Name="Dos" ItemsSource="{x:Bind DosItems}" Style="{StaticResource myListViewStyle}"
IsItemClickEnabled="True" ItemClick="Dos_ItemClick">
<ListView.ItemTemplate >
<DataTemplate x:DataType="data:Thingy">
<TextBlock Text="{x:Bind Symbol}" ></TextBlock>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<ListView Name="Tres" ItemsSource="{x:Bind TresItems}" Style="{StaticResource myListViewStyle}">
<ListView.ItemTemplate >
<DataTemplate x:DataType="data:Thingy">
<TextBlock Text="{x:Bind Symbol}" ></TextBlock>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<ListView Name="Cuatro" ItemsSource="{x:Bind TresItems}" Style="{StaticResource myListViewStyle}">
<ListView.ItemTemplate >
<DataTemplate x:DataType="data:Thingy">
<TextBlock Text="{x:Bind Symbol}" ></TextBlock>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<ListView Name="Cinco" ItemsSource="{x:Bind DosItems}" Style="{StaticResource myListViewStyle}">
<ListView.ItemTemplate >
<DataTemplate x:DataType="data:Thingy">
<TextBlock Text="{x:Bind Symbol}" ></TextBlock>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<ListView Name="Seiss" ItemsSource="{x:Bind TresItems}" Style="{StaticResource myListViewStyle}">
<ListView.ItemTemplate >
<DataTemplate x:DataType="data:Thingy">
<TextBlock Text="{x:Bind Symbol}"></TextBlock>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackPanel>
</StackPanel>
</StackPanel>
You just need to remove the "RowDefinition" without height and change the "Auto" Rows to "*".
Something like this:
<Grid Background="GreenYellow">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="200"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Button Grid.Row="0" Content="Black" Background="Black" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
<Button Grid.Row="1" Content="Black" Background="Gray" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
<Button Grid.Row="2" Content="Black" Background="Blue" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
</Grid>
I am building a Windows 8.1 Universal app. On the orientation change for the phone, the outer "Grid" element doesn't change in width when the phone is switched to Landscape mode (and vice versa if the app is originally opened in landscape - doesn't change width when orientation=portrait). The Width is bound to the PivotItem Width and the PivotItem fills the entire screen on orientation change but the Grid does not.
<Page x:Name="page"
x:Class="App1.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:App1"
xmlns:m="using:App1.Models"
xmlns:vm="using:App1.ViewModels"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
DataContext="{Binding DefaultViewModel, RelativeSource={RelativeSource Self}}"
mc:Ignorable="d">
<Page.BottomAppBar>
<CommandBar Foreground="White" Background="{StaticResource CustomResource}">
<AppBarButton x:Name="BackButton" Label="Back" HorizontalAlignment="Center"
Click="BackButton_Click" Icon="Back" />
<AppBarButton x:Name="ForwardButton" Label="Forward" HorizontalAlignment="Center"
Click="ForwardButton_Click" Icon="Forward" />
<AppBarButton x:Name="HomeButton" Label="Home" HorizontalAlignment="Center"
Click="HomeButton_Click" Icon="Home" />
<AppBarButton x:Name="SettingsButton" Label="Settings" HorizontalAlignment="Center"
Click="SettingsButton_Click" Icon="Setting" />
</CommandBar>
</Page.BottomAppBar>
<Page.Resources>
<DataTemplate x:Key="myHeader">
<TextBlock Text="{Binding}" FontFamily="CustomFont" />
</DataTemplate>
<Style x:Key="PivotStyle" TargetType="Pivot">
<Setter Property="HeaderTemplate" Value="{StaticResource myHeader}"/>
</Style>
<!--<dict:NumberConverter x:Key="myNumberConverter" />-->
</Page.Resources>
<d:Page.DataContext>
<vm:DesignTimeDataSample />
</d:Page.DataContext>
<Grid>
<Pivot x:Name="MyPivot"
Style="{StaticResource PivotStyle}"
Background="{StaticResource CustomItem}"
SelectionChanged="MyPivot_SelectionChanged"
Foreground="Purple"
Grid.Row="1">
<PivotItem x:Name="Feed"
Header="news feed"
FontFamily="CustomFont">
<ScrollViewer Name="ScrollViewer">
<StackPanel x:Name="stackPanel">
<ListView ItemsSource="{Binding TileStories}" x:Name="cont" Margin="0,10,0,10" Background="{StaticResource CustomItem}" BorderBrush="{StaticResource CustomItem}" Foreground="{StaticResource CustomItem}">
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalAlignment" Value="Stretch" />
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="MinHeight" Value="0" />
<Setter Property="Margin" Value="0,10,0,10" />
<Setter Property="Foreground" Value="{StaticResource CustomItem}" />
</Style>
</ListView.ItemContainerStyle>
<ListView.ItemTemplate>
<DataTemplate>
<Border CornerRadius="20" BorderThickness="0" Background="White" HorizontalAlignment="Stretch">
<StackPanel Height="160" Orientation="Horizontal">
<Grid HorizontalAlignment="Stretch" Width="{Binding ActualWidth, ElementName=Feed, Mode=OneWay}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="2*" />
</Grid.ColumnDefinitions>
<Grid Grid.Column="0">
<Image Source="{Binding ImagePath}" Margin="20"/>
</Grid>
<Grid Grid.Column="1">
<Grid.RowDefinitions>
<RowDefinition Height="2*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid Grid.Row="0" Margin="0,0,0.333,53" Grid.RowSpan="2" HorizontalAlignment="Stretch">
<TextBlock VerticalAlignment="Center"
LineStackingStrategy="BlockLineHeight"
LineHeight="20" MaxHeight="80"
TextWrapping="WrapWholeWords"
Text="{Binding Headline}" FontSize="18"
FontFamily="CustomItem" />
</Grid>
<Grid Grid.Row="1" Margin="0,0.333,0.333,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid Grid.Column="0">
<TextBlock VerticalAlignment="Center"
HorizontalAlignment="Left"
Margin="5" Text="{Binding Date}"
Foreground="#FFBDBDBD"
FontFamily="CustomItem" />
</Grid>
<Grid Grid.Column="1">
<AppBarButton
Style="{StaticResource CustomItem}"
VerticalAlignment="Center"
Margin="0,0,0,2"
HorizontalAlignment="Right"
Icon="Read"
CommandParameter="{Binding Url}"
Click="StoryButton_Click" FontFamily="Global User Interface"/>
</Grid>
</Grid>
</Grid>
</Grid>
</StackPanel>
</Border>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<Button Foreground="White" Content="Send Notification" Grid.Row="0" HorizontalAlignment="Stretch" Name="ToastButton" Click="ToastButton_Click" Margin="0,0,0,25.333"/>
</StackPanel>
</ScrollViewer>
</PivotItem>
<PivotItem x:Name="News" Header="news">
<WebView x:Name="MyWebView" NavigationCompleted="MyWebView_NavigationCompleted"/>
</PivotItem>
</Pivot>
</Grid>
</Page>
What's the best way to display items in a listview as circles?
I want to embed the name of the item within the circle.
Do I use a ItemContainerStyle?
I assume I use a controltemplate. However, I'm confused as I consider its relationship with the ItemContainerStyle.
What's wrong with the following code?
<ListView ItemsSource="{Binding Contacts}"
CanDragItems="True" DragItemsStarting="OnDragItemStarting">
<ListViewItem Style="{StaticResource ContactsListItemStyle}" />
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<ContentControl Content="{Binding DisplayName}">
<ContentControl.Template>
<ControlTemplate>
<ContentControl>
<Grid>
<Ellipse Fill="LightGray" Height="50" Width="50" />
<Viewbox>
<ContentControl Margin="20" Content="{TemplateBinding Content}" />
</Viewbox>
</Grid>
</ContentControl>
</ControlTemplate>
</ContentControl.Template>
</ContentControl>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
The following XAML works:
<Page.Resources>
<ControlTemplate x:Key="ContentControlTemplate" TargetType="ContentControl">
<ContentControl>
<Grid>
<Ellipse Fill="LightGray" Height="200" Width="200" />
<Viewbox>
<ContentControl Margin="20" Content="{TemplateBinding Content}" />
</Viewbox>
</Grid>
</ContentControl>
</ControlTemplate>
</Page.Resources>
<ListView ItemsSource="{Binding Contacts}"
CanDragItems="True" DragItemsStarting="OnDragItemStarting">
<ListViewItem Style="{StaticResource ContactsListItemStyle}" />
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<ContentControl Template="{StaticResource ContentControlTemplate}"
Content="{Binding DisplayName}" />
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
i have a pivot control and i'm wanting to change the style of the unselected pivots. in particular, I want to change the opacity.
I know it has something to do with Primitives:PivotHeadersControl, but I can't figure out what to set on the style for this control.
I have the following style for my pivot
</Grid>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="HeaderTemplate">
<Setter.Value>
<DataTemplate>
<Grid Background="{StaticResource TabHeaderBackgroundBrush}" >
<Border BorderBrush="White" BorderThickness="1">
<TextBlock Text="{Binding}" FontSize="28" Margin="15,0,15,0"
Foreground="{StaticResource ForegroundBrush}"/>
</Border>
</Grid>
</DataTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Controls:Pivot">
<Grid HorizontalAlignment="{TemplateBinding HorizontalAlignment}"
VerticalAlignment="{TemplateBinding VerticalAlignment}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid Background="Transparent" CacheMode="BitmapCache" Grid.RowSpan="2" />
<Grid Background="{TemplateBinding Background}" CacheMode="BitmapCache"
Grid.Row="2" />
<ContentPresenter ContentTemplate="{TemplateBinding TitleTemplate}"
Content="{TemplateBinding Title}" Margin="24,17,0,-7"/>
<Primitives:PivotHeadersControl x:Name="HeadersListElement"
Grid.Row="1" >
</Primitives:PivotHeadersControl>
<Border Margin="0,-1,0,0" BorderBrush="White"
BorderThickness="1" Grid.Row="2"
Background="{StaticResource TabBackgroundBrush}">
<ItemsPresenter x:Name="PivotItemPresenter"
Margin="0"/>
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I trying to build a winRT metro application that use a GridView. I get the GridView and it looks like I want it to do. But the horizontal scroll doesn't work. When I drag the content it move but when I release it, it will return to start.
Anyone that know why it doesn't work?
<Page
x:Class="WR.Levels"
IsTabStop="false"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:Wordy"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:uc="using:Wordy.UserControls"
mc:Ignorable="d">
<UserControl.Resources>
<CollectionViewSource x:Name="cvsLevels" IsSourceGrouped="True"/>
<CollectionViewSource x:Name="cvsCategories" IsSourceGrouped="True" ItemsPath="Levels"/>
</UserControl.Resources>
<Canvas x:Name="innertialCanvas"
Grid.Row="1"
Background="#FF3D6E4F"
>
<uc:BG HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="84"/>
<RowDefinition Height="700"/>
</Grid.RowDefinitions>
<StackPanel Margin="20,20,0,0" Grid.Row="0" Orientation="Horizontal">
<Button x:Name="backButton" Style="{StaticResource BackButtonStyle}" Margin="10" VerticalAlignment="Center" >Back</Button>
<TextBlock Name="appName" Text="WR" FontSize="48" VerticalAlignment="Center" />
</StackPanel>
<GridView ItemsSource="{Binding Source={StaticResource cvsCategories}}" Margin="0,0,0,0"
IsItemClickEnabled="True" SelectionMode="None" MaxHeight="700" Grid.Row="1"
AutomationProperties.AutomationId="LevelsGrid">
<GridView.ItemTemplate>
<DataTemplate>
<StackPanel Width="150" Height="130" Margin="10" AutomationProperties.AutomationId="Level">
<StackPanel.Background>
<SolidColorBrush Color="White" Opacity="0.2" />
</StackPanel.Background>
<StackPanel Orientation="Horizontal" Margin="10">
<uc:Stars Height="50" Width="50" />
<uc:Stars Height="50" Width="50" />
</StackPanel>
<TextBlock Text="{Binding Name}" Margin="0,10,0,0" FontSize="24" HorizontalAlignment="Center"></TextBlock>
</StackPanel>
</DataTemplate>
</GridView.ItemTemplate>
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</GridView.ItemsPanel>
<GridView.GroupStyle>
<GroupStyle HidesIfEmpty="True">
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Grid Margin="0">
<TextBlock Text='{Binding Name}'
Foreground="White" Margin="20"
Style="{StaticResource HeaderTextStyle}" AutomationProperties.AutomationId="LevelGroup"/>
</Grid>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.ContainerStyle>
<Style TargetType="GroupItem">
<Setter Property="Margin" Value="3,0"/>
</Style>
</GroupStyle.ContainerStyle>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<VariableSizedWrapGrid/>
</ItemsPanelTemplate>
</GroupStyle.Panel>
</GroupStyle>
</GridView.GroupStyle>
</GridView>
</Grid>
</Canvas>
</Page>
When I removed the canvas tag it worked!