DependencyObjectCollection<T>.IList.IsFixedSize Property
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Gets a value that indicates whether the collection allows the addition or removal of objects after creation.
Assembly: System.Windows (in System.Windows.dll)
A collection with a fixed size does not allow the addition or removal of items after the collection is created, but it allows the modification of existing items.
This member is an explicit interface member implementation. It can be used only when the DependencyObjectCollection<T> instance is cast to an IList interface.