蛙蛙求助：请教.net 2.0里的PerformanceCounterCategoryType枚举问题。

[onlytiancai]

蛙蛙求助：请教.net 2.0里的PerformanceCounterCategoryType枚举问题。
public string PerformanceObjectName = "MyEnterpriseApplication";
// create a collection...
CounterCreationDataCollection list = new CounterCreationDataCollection();

// go through each counter...
foreach(EnterpriseCounter counter in Counters)
{
// create some new data...
CounterCreationData data = new CounterCreationData();
data.CounterName = counter.Name;
data.CounterHelp = counter.HelpText;
data.CounterType = counter.Type;

// add it...
list.Add(data);
}

// create the category and all of the counters...
//PerformanceCounterCategory.Create(PerformanceObjectName, "", list);
PerformanceCounterCategory.Create(PerformanceObjectName,
"",
PerformanceCounterCategoryType.MultiInstance,
list);
就最后这句里的PerformanceCounterCategoryType.SingleInstance，MultiInstance，Unknown枚举的各个选项都是指什么呀。。

[onlytiancai]

N久没来CSDN，今天来问了三个问题，一个也没人回复，是周末的原因还是大家对.NET 2.0不感冒呀。

[onlytiancai]

我找到了一些英文说明，谁给翻译一下呀。
http://msdn2.microsoft.com/en-us/library/9c5zx326
PerformanceCounterCategoryType Enumeration
Note: This enumeration is new in the .NET Framework version 2.0.

Indicates whether the performance counter category can have multiple instances.

Namespace: System.Diagnostics
Assembly: System (in system.dll)

Members
Member name Description
MultiInstance The performance counter category can have multiple instances.
SingleInstance The performance counter category can have only a single instance.
Unknown The instance functionality for the performance counter category is unknown.

Remarks

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.

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