LanMountainDesktop/LanMountainDesktop.Mobile/Views/WidgetPanelView.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:vm="using:LanMountainDesktop.Mobile.ViewModels"
             x:Class="LanMountainDesktop.Mobile.Views.WidgetPanelView"
             x:DataType="vm:WidgetPanelViewModel">
  <Grid RowDefinitions="Auto,*">
    <Border Grid.Row="0" Padding="20,16">
      <TextBlock Text="{Binding Title}"
                 FontSize="22"
                 FontWeight="SemiBold" />
    </Border>

    <ScrollViewer Grid.Row="1" Padding="12,0,12,12">
      <ItemsControl ItemsSource="{Binding Widgets}">
        <ItemsControl.ItemsPanel>
          <ItemsPanelTemplate>
            <StackPanel Spacing="12" />
          </ItemsPanelTemplate>
        </ItemsControl.ItemsPanel>
        <ItemsControl.ItemTemplate>
          <DataTemplate x:DataType="vm:WidgetCardViewModel">
            <Border Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
                    CornerRadius="16"
                    Padding="16"
                    MinHeight="96">
              <StackPanel Spacing="8">
                <TextBlock Text="{Binding Name}"
                           FontSize="15"
                           FontWeight="SemiBold" />
                <ContentControl Content="{Binding Content}"
                                IsVisible="{Binding Content, Converter={x:Static ObjectConverters.IsNotNull}}" />
                <TextBlock Text="{Binding Placeholder}"
                           FontSize="13"
                           Opacity="0.6"
                           TextWrapping="Wrap"
                           IsVisible="{Binding Content, Converter={x:Static ObjectConverters.IsNull}}" />
              </StackPanel>
            </Border>
          </DataTemplate>
        </ItemsControl.ItemTemplate>
      </ItemsControl>
    </ScrollViewer>
  </Grid>
</UserControl>