'Declaration
<CustomCategoryAttribute("Content")> <System.ComponentModel.BindableAttribute(Bindable=True, Direction=BindingDirection.OneWay)> Public Property ContentTemplate As System.Windows.DataTemplate
[CustomCategory("Content")] [System.ComponentModel.Bindable(Bindable=true, Direction=BindingDirection.OneWay)] public System.Windows.DataTemplate ContentTemplate {get; set;}