'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>