SortedList<TKey, TValue>.TrimExcess Method ()

 

Sets the capacity to the actual number of elements in the SortedList<TKey, TValue>, if that number is less than 90 percent of current capacity.

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

public void 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 SortedList<TKey, TValue> 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 SortedList<TKey, TValue> to its initial state, call the Clear method before calling TrimExcess method. Trimming an empty SortedList<TKey, TValue> sets the capacity of the SortedList<TKey, TValue> to the default capacity.

The capacity can also be set using the Capacity property.

Universal Windows Platform
Available since 10
.NET Framework
Available since 2.0
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