TrimExcess Method

Stack(Of T).TrimExcess Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Sets the capacity to the actual number of elements in the Stack(Of T), if that number is less than 90 percent of current capacity.

Namespace:  System.Collections.Generic
Assembly:  System (in System.dll)

'Declaration
Public Sub TrimExcess

This method can be used to minimize a collection's memory overhead if no new elements will be added to the collection. The cost of reallocating and copying a large Stack(Of T) can be considerable, however, so the TrimExcess method does nothing if the list is at more than 90 percent of capacity. This avoids incurring a large reallocation cost for a relatively small gain.

This method is an O(n) operation, where n is Count.

To reset a Stack(Of T) to its initial state, call the Clear method before calling TrimExcess method. Trimming an empty Stack(Of T) sets the capacity of the Stack(Of T) to the default capacity.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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