inabox/InABox.Avalonia/Components/MonthView/MonthView.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             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"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="InABox.Avalonia.Components.MonthView"
             Name="Control">
    <Border CornerRadius="{Binding ElementName=Control, Path=CornerRadius}"
            ClipToBounds="True">
        <Grid RowDefinitions="Auto,*">
            <Border Grid.Row="0"
                    BorderBrush="LightGray" BorderThickness="0,0,0,1"
                    Height="25"
                    Background="White">
                <Canvas Name="HeaderCanvas"/>
            </Border>
            <Canvas Name="Canvas"
                    Grid.Row="1"
                    Background="WhiteSmoke"
                    SizeChanged="Canvas_SizeChanged"/>
        </Grid>
    </Border>
</UserControl>