![](dotnetdiagramimages/C1_Win_8_C1_Framework_TreeColumnCollection.png)
'Declaration
<DebuggerTypeProxyAttribute(System.Collections.Generic.CollectionDebugView`1)> <DebuggerDisplayAttribute("Count = {Count}")> <DefaultMemberAttribute("Item")> Public Class TreeColumnCollection Inherits C1.Framework.TreeCollection(Of GridColumn)
[DebuggerTypeProxy(System.Collections.Generic.CollectionDebugView`1)] [DebuggerDisplay("Count = {Count}")] [DefaultMember("Item")] public class TreeColumnCollection : C1.Framework.TreeCollection<GridColumn>
System.Object
System.Collections.ObjectModel.Collection<T>
System.Collections.ObjectModel.ObservableCollection<T>
C1.Framework.TreeCollection<T>
C1.Framework.TreeColumnCollection