xaml-sdk/Diagram/OrgChart/MainWindow.xaml

<Window x:Class="OrgChart.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:OrgChart"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <local:OrgChartExample />
    </Grid>
</Window>