GridColumnCollection Class

public class GridColumnCollection :
    DataItemContainerCollection<GridColumnBase>,
    IList<GridColumnBase>,
    ICollection<GridColumnBase>,
    IList,
    ICollection,
    IReadOnlyList<GridColumnBase>,
    IReadOnlyCollection<GridColumnBase>,
    IUpdateLocker,
    IDataItemHolderCollection<GridColumnBase>,
    IEnumerable<GridColumnBase>,
    IEnumerable

Public Class GridColumnCollection
    Inherits DataItemContainerCollection(Of GridColumnBase)
    Implements IList(Of GridColumnBase),
               ICollection(Of GridColumnBase),
               IList,
               ICollection,
               IReadOnlyList(Of GridColumnBase),
               IReadOnlyCollection(Of GridColumnBase),
               IUpdateLocker,
               IDataItemHolderCollection(Of GridColumnBase),
               IEnumerable(Of GridColumnBase),
               IEnumerable