public: DependencyProperty DocumentTitleProperty = DependencyProperty.Register( "DocumentTitle", typeof(string), typeof(RibbonWindowBorder), new FrameworkPropertyMetadata( "", FrameworkPropertyMetadataOptions.AffectsRender, OnTitleChanged));

public static readonly DependencyProperty DocumentTitleProperty = DependencyProperty.Register( "DocumentTitle", typeof(string), typeof(RibbonWindowBorder), new FrameworkPropertyMetadata( "", FrameworkPropertyMetadataOptions.AffectsRender, OnTitleChanged));

Public static readonly DocumentTitleProperty As DependencyProperty = DependencyProperty.Register( "DocumentTitle", typeof(string), typeof(RibbonWindowBorder), new FrameworkPropertyMetadata( "", FrameworkPropertyMetadataOptions.AffectsRender, OnTitleChanged))