[System.Reflection.DefaultMember("Item")] public class NColumnCollection : Nevron.Nov.Grid.NHeaderCollectionBase<NColumn>, Nevron.Nov.DataStructures.INAddable<NColumn>, Nevron.Nov.DataStructures.INClearable, Nevron.Nov.DataStructures.INCollection<NColumn>, Nevron.Nov.DataStructures.INContains<NColumn>, Nevron.Nov.DataStructures.INCountable<NColumn>, Nevron.Nov.DataStructures.INDynamicSet<NColumn>, Nevron.Nov.DataStructures.INIndexedSet<NColumn>, Nevron.Nov.DataStructures.INIterable<NColumn>, Nevron.Nov.DataStructures.INRemovable<NColumn>, Nevron.Nov.DataStructures.INReverseIterable<NColumn>, Nevron.Nov.DataStructures.INSet<NColumn>, Nevron.Nov.DataStructures.INWritableIndexedSet<NColumn>, Nevron.Nov.Dom.INArrangeElement, Nevron.Nov.Dom.INArrangeElementParent, Nevron.Nov.Dom.INDomDeepEquals, Nevron.Nov.Dom.INDomDeeplyCloneable, Nevron.Nov.Dom.INMeasureElement, Nevron.Nov.Dom.INMeasureElementParent, Nevron.Nov.INDeeplyCloneable, Nevron.Nov.UI.INInputNode