using System.ComponentModel.Design; namespace System.Windows.Forms { class RibbonOrbRecentItemCollectionEditor : CollectionEditor { public RibbonOrbRecentItemCollectionEditor() : base(typeof(RibbonOrbRecentItemCollection)) { } protected override Type CreateCollectionItemType() { return typeof(RibbonOrbRecentItem); } protected override Type[] CreateNewItemTypes() { return new[] { typeof(RibbonOrbRecentItem), typeof(RibbonSeparator) }; } } }