Partial Type

System/ComponentModel/Design/CollectionEditor.cs

System/ComponentModel/Design/CollectionEditor.CollectionEditorCollectionForm.cs

System/ComponentModel/Design/CollectionEditor.CollectionForm.cs

System/ComponentModel/Design/CollectionEditor.FilterListBox.cs

System/ComponentModel/Design/CollectionEditor.PropertyGridSite.cs

System/ComponentModel/Design/CollectionEditor.SplitButton.cs