Gets the number of elements in the collection.
Assembly: PresentationCore (in PresentationCore.dll)
is always less than or equal to Capacity. If exceeds Capacity while adding elements, the capacity of the list is doubled by automatically reallocating the internal array before copying the old elements and adding the new elements.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.