modernkeepass/ModernKeePass/Views/MainPageFrames/DonatePage.xaml

<Page
    x:Class="ModernKeePass.Views.DonatePage"
    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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:viewModels="using:ModernKeePass.ViewModels"
    xmlns:converters="using:ModernKeePass.Converters"
    mc:Ignorable="d">
    <Page.DataContext>
        <viewModels:DonateVm />
    </Page.DataContext>
    <Page.Resources>
        <converters:NullToBooleanConverter x:Key="NullToBooleanConverter"/>
        <CollectionViewSource 
            x:Name="DonateItemsSource" 
            Source="{Binding Donations}" />
    </Page.Resources>
    <StackPanel Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <TextBlock x:Uid="DonateDesc" Style="{StaticResource BodyTextBlockStyle}" />
        <ItemsControl ItemsSource="{Binding Source={StaticResource DonateItemsSource}}" Margin="0,10,0,10">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <RadioButton GroupName="DonateOptions" Content="{Binding FormattedPrice}" Checked="ToggleButton_OnChecked" />
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
        <Button x:Uid="DonateButton" Click="ButtonBase_OnClick" IsEnabled="{Binding SelectedItem, Converter={StaticResource NullToBooleanConverter}}" />
    </StackPanel>
</Page>