WPF 静态属性的使用

<Window x:Class="WPF.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 Name="button1" Content="Button" Foreground="{x:Static SystemColors.ActiveCaptionBrush}" HorizontalAlignment="Left" Margin="23,10,0,0" VerticalAlignment="Top" Width="75"/>
        <Button Content="Button" HorizontalAlignment="Left" Margin="23,52,0,0" VerticalAlignment="Top" Width="75" RenderTransformOrigin="-0.293,-0.455">
         <Button.Foreground>
            <x:Static Member="SystemColors.ActiveCaptionBrush"></x:Static> 
         </Button.Foreground>
        </Button>

    </Grid>
</Window>

后台代码：

 /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            this.Loaded += MainWindow_Loaded;
        }

        void MainWindow_Loaded(object sender, RoutedEventArgs e)
        {   
            //在代码
            button1.Foreground = SystemColors.ActiveBorderBrush;
        }

     
    }