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PerformanceCounterCategoryType Enumeration

Indicates whether the performance counter category can have multiple instances.

Namespace:  System.Diagnostics
Assembly:  System (in System.dll)
public enum PerformanceCounterCategoryType
Member nameDescription
UnknownThe instance functionality for the performance counter category is unknown.
SingleInstanceThe performance counter category can have only a single instance.
MultiInstanceThe performance counter category can have multiple instances.

There are two types of performance counter categories: single-instance and multi-instance. By default, a category is single-instance when it is created and becomes multi-instance when another instance is added. Categories are created when an application is set up, and instances are added at run time. In the .NET Framework version 1.0 and version 1.1, it is not necessary to know whether a performance counter category is multi-instance or single-instance. In the .NET Framework version 2.0, the PerformanceCounterCategoryType enumeration is used to indicate whether a performance counter can have multiple instances.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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