'Declaration
<TemplatePartAttribute(Name="Content", Type=System.Windows.FrameworkElement)> <TemplateVisualStateAttribute(Name="Closed", GroupName="OpenStates")> <ContentPropertyAttribute("Content", True)> Public Class C1Window Inherits C1HeaderedContentControl
[TemplatePart(Name="Content", Type=System.Windows.FrameworkElement)] [TemplateVisualState(Name="Closed", GroupName="OpenStates")] [ContentProperty("Content", true)] public class C1Window : C1HeaderedContentControl