Export (0) Print
Expand All

GC.CollectionCount Method

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

Namespace:  System
Assemblies:   mscorlib (in mscorlib.dll)
  System.Runtime (in System.Runtime.dll)

'Declaration
Public Shared Function CollectionCount ( _
	generation As Integer _
) As Integer

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, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Show:
© 2014 Microsoft