Embedded Code in Window.xaml

   
      

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        x:Class="EmbeddedCodeWindow"
        Title="Embed Code in XAML"
        SizeToContent="WidthAndHeight"
        ResizeMode="CanMinimize"
        Loaded="WindowOnLoaded">
    <StackPanel>

        <Button HorizontalAlignment="Center"
                Margin="24"
                Click="ButtonOnClick">
            Click the Button
        </Button>

        <Ellipse Name="elips" 
                 Width="200"
                 Height="100"
                 Margin="24" 
                 Stroke="Red"
                 StrokeThickness="10" />

        <ListBox Name="lstbox" 
                 Width="150"
                 Height="150"
                 Margin="24"
                 SelectionChanged="ListBoxOnSelection" />

        <x:Code>
        void WindowOnLoaded(object sender, RoutedEventArgs args)
        {
            foreach (System.Reflection.PropertyInfo prop in typeof(Brushes).GetProperties())
                lstbox.Items.Add(prop.Name);
        }
        void ButtonOnClick(object sender, RoutedEventArgs args)
        {
            Button btn = sender as Button;
            MessageBox.Show("The button labeled &#039;" + btn.Content + "&#039; has been clicked.");
        }
        void ListBoxOnSelection(object sender, SelectionChangedEventArgs args)
        {
            string strItem = lstbox.SelectedItem as string;
            System.Reflection.PropertyInfo prop = typeof(Brushes).GetProperty(strItem);
            elips.Fill = (Brush)prop.GetValue(null, null);
        }
        </x:Code>

    </StackPanel>
</Window>