![](dotnetdiagramimages/C1_Win_4_8_C1_Framework_TreeColumnCollection.png)
'Declaration
<DefaultMemberAttribute("Item")> <DebuggerTypeProxyAttribute(System.Collections.Generic.Mscorlib_CollectionDebugView`1)> <DebuggerDisplayAttribute("Count = {Count}")> Public Class TreeColumnCollection Inherits C1.Framework.TreeCollection(Of GridColumn)
[DefaultMember("Item")] [DebuggerTypeProxy(System.Collections.Generic.Mscorlib_CollectionDebugView`1)] [DebuggerDisplay("Count = {Count}")] 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