![](dotnetdiagramimages/C1_WPF_Schedule_4_5_2_C1_WPF_Schedule_IntervalGroupDescriptionCollection.png)
'Declaration
Public Class IntervalGroupDescriptionCollection Inherits System.Collections.ObjectModel.ObservableCollection(Of VisualIntervalGroupDescription)
public class IntervalGroupDescriptionCollection : System.Collections.ObjectModel.ObservableCollection<VisualIntervalGroupDescription>
System.Object
System.Collections.ObjectModel.Collection<T>
System.Collections.ObjectModel.ObservableCollection<T>
C1.WPF.Schedule.IntervalGroupDescriptionCollection