'Declaration
<System.ComponentModel.DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Content)> Public ReadOnly Property GroupStyle As System.Collections.ObjectModel.ObservableCollection(Of GroupStyle)
[System.ComponentModel.DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] public System.Collections.ObjectModel.ObservableCollection<GroupStyle> GroupStyle {get;}