Window4.xaml

<Window x:Class="WpfApplication1.Window4"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Window4" Height="300" Width="300" xmlns:my="clr-namespace:FLY.ControlLibrary;assembly=FLY.ControlLibrary">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="219*" />
            <RowDefinition Height="auto" />
        </Grid.RowDefinitions>
        <my:GraphScanCircular Name="graphScanCircular1" />
        <StackPanel Orientation="Horizontal" Grid.Row="1">
            <Button Content="Button" Height="23" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Click="Button_Click" />
            <Button Content="Button" Height="23" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Click="Button_Click_1" />
        </StackPanel>

    </Grid>
</Window>