reactive/Rx.NET/Test/Rx/WpfApp45_NuGet/MainWindow.xaml

<Window x:Class="WpfApp45_NuGet.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Button x:Name="button1" Content="Run tests" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Width="75" Click="button1_Click"/>
        <TextBox x:Name="textBox1" HorizontalAlignment="Left" Height="23" Margin="99,10,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <TextBlock x:Name="label1" Text="(Results)" HorizontalAlignment="Left" Margin="10,45,0,0" VerticalAlignment="Top"/>
    </Grid>
</Window>