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GC.CollectionCount Method

Returns the number of times garbage collection has occurred for the specified generation of objects.

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

public static int CollectionCount (
	int generation
)
public static int CollectionCount (
	int generation
)
public static function CollectionCount (
	generation : int
) : int
Not applicable.

Parameters

generation

The generation of objects for which the garbage collection count is to be determined.

Return Value

The number of times garbage collection has occurred for the specified generation since the process was started.

Exception typeCondition

ArgumentOutOfRangeException

generation is less than 0.

If you implement your own resource management, you might need to force garbage collection periodically by calling the Collect method. Because this is an expensive operation, you can improve performance by skipping the call when a garbage collection has occurred recently. Save the value returned by CollectionCount immediately after calling Collect. The next time you need to call Collect, compare the current value returned by CollectionCount to the saved value. If the two values are equal, no collection has occurred in the interim and it is reasonable to call Collect again.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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