inabox/InABox.Avalonia/Components/DateSelector/DateSelectorButton.axaml

<UserControl xmlns="https://github.com/avaloniaui"
			 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
			 xmlns:components="using:InABox.Avalonia.Components"
			 x:Class="InABox.Avalonia.Components.DateSelectorButton"
			 x:DataType="components:DateSelectorButton">
	<UserControl.Resources>
		<components:DateSelectorDateTimeFormatter x:Key="dateFormatter"/>
	</UserControl.Resources>
	<Button Classes="Standard"
			Command="{Binding $parent[components:DateSelectorButton].ClickCommand}"
			Padding="0"
			Background="Transparent"
			BorderThickness="0">
		<Button.Content>
			<MultiBinding Converter="{StaticResource dateFormatter}">
				<Binding Path="$parent[components:DateSelectorButton].Date"/>
				<Binding Path="$parent[components:DateSelectorButton]"/>
			</MultiBinding>
		</Button.Content>
	</Button>
</UserControl>