Gets or sets the preallocated collection item capacity for this collection.
Assembly: PresentationFramework (in PresentationFramework.dll)
The property represents the number of preallocated slots for storing items in this collection, whereas the Count property represents the actual number of items currently in the collection. The value of is always at least as large as the value of Count.
When newly added collection items cause the collection count to exceed the collection capacity, the capacity is increased automatically to accommodate the newly added collection items. Increasing the collection capacity involves allocating additional collection slots, which incurs both performance and memory overhead. Use the property to optimize the collection capacity in cases where the total or maximum number of collection items is known in advance. Use the TrimToSize method to cause the collection capacity to equalize with the current collection count.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.