'宣言 Public Overloads Function AddCollectionChange(Of TItem)( _ ByVal collection As ICollection(Of TItem), _ ByVal item As TItem, _ ByVal oldIndex As Integer, _ ByVal newIndex As Integer, _ Optional ByVal itemTypeDisplayName As String _ ) As UndoUnit
public UndoUnit AddCollectionChange<TItem>( ICollection<TItem> collection, TItem item, int oldIndex, int newIndex, string itemTypeDisplayName )