![](dotnetdiagramimages/GrapeCity_WPF_SpreadGrid_GrapeCity_Windows_SpreadGrid_Editors_BlackoutDatesCollection.png)
'宣言
Public NotInheritable Class BlackoutDatesCollection Inherits System.Collections.ObjectModel.ObservableCollection(Of CalendarDateRange)
public sealed class BlackoutDatesCollection : System.Collections.ObjectModel.ObservableCollection<CalendarDateRange>
System.Object
System.Collections.ObjectModel.Collection<T>
System.Collections.ObjectModel.ObservableCollection<T>
GrapeCity.Windows.SpreadGrid.Editors.BlackoutDatesCollection