TrimToSize Method

ArrayList.TrimToSize Method ()


Sets the capacity to the actual number of elements in the ArrayList.

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

abstract TrimToSize : unit -> unit
override TrimToSize : unit -> unit

Exception Condition

The ArrayList is read-only.


The ArrayList has a fixed size.

This method can be used to minimize a collection's memory overhead if no new elements will be added to the collection.

To reset a ArrayList to its initial state, call the Clear method before calling TrimToSize. Trimming an empty ArrayList sets the capacity of the ArrayList to the default capacity.

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

The following code example shows how to trim the unused portions of the ArrayList and how to clear the values of the ArrayList.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
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