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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)

static member CollectionCount : 
        generation:int -> int

Parameters

generation
Type: System.Int32

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

Return Value

Type: System.Int32
The number of times garbage collection has occurred for the specified generation since the process was started.

ExceptionCondition
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.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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