InstanceDataCollection 类

定义

命名空间:

System.Diagnostics

程序集:

System.Diagnostics.PerformanceCounter.dll

包:

System.Diagnostics.PerformanceCounter v8.0.0

Source:

InstanceDataCollection.cs

提供 InstanceData 对象的强类型集合。

public ref class InstanceDataCollection : System::Collections::DictionaryBase

public class InstanceDataCollection : System.Collections.DictionaryBase

type InstanceDataCollection = class
    inherit DictionaryBase

Public Class InstanceDataCollection
Inherits DictionaryBase

继承

Object

DictionaryBase

InstanceDataCollection

示例

下面的代码示例显示本地计算机上的特定 PerformanceCounterCategory 实例数据。 它首先显示编号的名称 PerformanceCounterCategory 列表。 在用户输入其中一个类别的编号后，该示例将获取 InstanceDataCollectionCollection 该 PerformanceCounterCategory的 。 然后，它将 返回 Values 的集合转换为 对象的数组 InstanceDataCollection 。 该示例还显示与每个 InstanceDataInstanceDataCollection关联的实例数据。

using System;
using System.Diagnostics;
using System.Collections;

class InstDataKeysValuesMod
{

    private static string categoryName;

    public static void Main()
    {
        string catNumStr;
        int categoryNum;

        PerformanceCounterCategory[] categories = PerformanceCounterCategory.GetCategories();

        Console.WriteLine("These categories are registered on this computer:");

        int catX;
        for(catX=0; catX<categories.Length; catX++)
        {
            Console.WriteLine("{0,4} - {1}", catX+1, categories[catX].CategoryName);
        }

        // Ask the user to choose a category.
        Console.Write("Enter the category number from the above list: ");
        catNumStr = Console.ReadLine();

        // Validate the entered category number.
        try
        {
            categoryNum = int.Parse(catNumStr);
            if (categoryNum<1||categoryNum>categories.Length)
            {
                throw new Exception(String.Format("The category number must be in the " +
                    "range 1..{0}.", categories.Length));
            }
            categoryName = categories[(categoryNum - 1)].CategoryName;
        }
        catch(Exception ex)
        {
            Console.WriteLine("\"{0}\" is not a valid category number." +
                "\r\n{1}", catNumStr, ex.Message);
            return;
        }

        // Process the InstanceDataCollectionCollection for this category.
        PerformanceCounterCategory pcc = new PerformanceCounterCategory(categoryName);
        InstanceDataCollectionCollection idColCol = pcc.ReadCategory();

        ICollection idColColKeys = idColCol.Keys;
        string[] idCCKeysArray = new string[idColColKeys.Count];
        idColColKeys.CopyTo(idCCKeysArray, 0);

        ICollection idColColValues = idColCol.Values;
        InstanceDataCollection[] idCCValuesArray = new InstanceDataCollection[idColColValues.Count];
        idColColValues.CopyTo(idCCValuesArray, 0);

        Console.WriteLine("InstanceDataCollectionCollection for \"{0}\" " +
            "has {1} elements.", categoryName, idColCol.Count);

        // Display the InstanceDataCollectionCollection Keys and Values.
        // The Keys and Values collections have the same number of elements.
        int index;
        for(index=0; index<idCCKeysArray.Length; index++)
        {
            Console.WriteLine("  Next InstanceDataCollectionCollection " +
                "Key is \"{0}\"", idCCKeysArray[index]);
            ProcessInstanceDataCollection(idCCValuesArray[index]);
        }
    }

    // Display the contents of an InstanceDataCollection.
    public static void ProcessInstanceDataCollection(InstanceDataCollection idCol)
    {

        ICollection idColKeys = idCol.Keys;
        string[] idColKeysArray = new string[idColKeys.Count];
        idColKeys.CopyTo(idColKeysArray, 0);

        ICollection idColValues = idCol.Values;
        InstanceData[] idColValuesArray = new InstanceData[idColValues.Count];
        idColValues.CopyTo(idColValuesArray, 0);

        Console.WriteLine("  InstanceDataCollection for \"{0}\" " +
            "has {1} elements.", idCol.CounterName, idCol.Count);

        // Display the InstanceDataCollection Keys and Values.
        // The Keys and Values collections have the same number of elements.
        int index;
        for(index=0; index<idColKeysArray.Length; index++)
        {
            Console.WriteLine("    Next InstanceDataCollection " +
                "Key is \"{0}\"", idColKeysArray[index]);
            ProcessInstanceDataObject(idColValuesArray[index]);
        }
    }

    // Display the contents of an InstanceData object.
    public static void ProcessInstanceDataObject(InstanceData instData)
    {
        CounterSample sample = instData.Sample;

        Console.WriteLine("    From InstanceData:\r\n      " +
            "InstanceName: {0,-31} RawValue: {1}", instData.InstanceName, instData.Sample.RawValue);
        Console.WriteLine("    From CounterSample:\r\n      " +
            "CounterType: {0,-32} SystemFrequency: {1}\r\n" +
            "      BaseValue: {2,-34} RawValue: {3}\r\n" +
            "      CounterFrequency: {4,-27} CounterTimeStamp: {5}\r\n" +
            "      TimeStamp: {6,-34} TimeStamp100nSec: {7}", sample.CounterType, sample.SystemFrequency, sample.BaseValue, sample.RawValue, sample.CounterFrequency, sample.CounterTimeStamp, sample.TimeStamp, sample.TimeStamp100nSec);
    }
}

Imports System.Diagnostics
Imports System.Collections

Module InstDataKeysValuesMod

    Private categoryName As String

    Sub Main()
        Dim catNumStr As String
        Dim categoryNum As Integer

        Dim categories As PerformanceCounterCategory() = _
            PerformanceCounterCategory.GetCategories()

        Console.WriteLine( _
            "These categories are registered on this computer:")

        Dim catX As Integer
        For catX = 0 To categories.Length - 1
            Console.WriteLine("{0,4} - {1}", catX + 1, _
                categories(catX).CategoryName)
        Next catX

        ' Ask the user to choose a category.
        Console.Write( _
            "Enter the category number from the above list: ")
        catNumStr = Console.ReadLine()

        ' Validate the entered category number.
        Try
            categoryNum = Integer.Parse(catNumStr)
            If categoryNum < 1 Or categoryNum > categories.Length Then
                Throw New Exception( _
                    String.Format("The category number must be in the " & _
                        "range 1..{0}.", categories.Length))
            End If
            categoryName = categories((categoryNum - 1)).CategoryName

        Catch ex As Exception
            Console.WriteLine("""{0}"" is not a valid category number." & _
                vbCrLf & "{1}", catNumStr, ex.Message)
            Return
        End Try

        ' Process the InstanceDataCollectionCollection for this category.
        Dim pcc As New PerformanceCounterCategory(categoryName)
        Dim idColCol As InstanceDataCollectionCollection = pcc.ReadCategory()

        Dim idColColKeys As ICollection = idColCol.Keys
        Dim idCCKeysArray(idColColKeys.Count - 1) As String
        idColColKeys.CopyTo(idCCKeysArray, 0)

        Dim idColColValues As ICollection = idColCol.Values
        Dim idCCValuesArray(idColColValues.Count - 1) As InstanceDataCollection
        idColColValues.CopyTo(idCCValuesArray, 0)

        Console.WriteLine("InstanceDataCollectionCollection for ""{0}"" " & _
            "has {1} elements.", categoryName, idColCol.Count)

        ' Display the InstanceDataCollectionCollection Keys and Values.
        ' The Keys and Values collections have the same number of elements.
        Dim index As Integer
        For index = 0 To idCCKeysArray.Length - 1
            Console.WriteLine("  Next InstanceDataCollectionCollection " & _
                "Key is ""{0}""", idCCKeysArray(index))
            ProcessInstanceDataCollection(idCCValuesArray(index))
        Next index
    End Sub

    ' Display the contents of an InstanceDataCollection.
    Sub ProcessInstanceDataCollection(ByVal idCol As InstanceDataCollection)

        Dim idColKeys As ICollection = idCol.Keys
        Dim idColKeysArray(idColKeys.Count - 1) As String
        idColKeys.CopyTo(idColKeysArray, 0)

        Dim idColValues As ICollection = idCol.Values
        Dim idColValuesArray(idColValues.Count - 1) As InstanceData
        idColValues.CopyTo(idColValuesArray, 0)

        Console.WriteLine("  InstanceDataCollection for ""{0}"" " & _
            "has {1} elements.", idCol.CounterName, idCol.Count)

        ' Display the InstanceDataCollection Keys and Values.
        ' The Keys and Values collections have the same number of elements.
        Dim index As Integer
        For index = 0 To idColKeysArray.Length - 1
            Console.WriteLine("    Next InstanceDataCollection " & _
                "Key is ""{0}""", idColKeysArray(index))
            ProcessInstanceDataObject(idColValuesArray(index))
        Next index
    End Sub

    ' Display the contents of an InstanceData object.
    Sub ProcessInstanceDataObject(ByVal instData As InstanceData)
        Dim sample As CounterSample = instData.Sample

        Console.WriteLine("    From InstanceData:" & vbCrLf & "      " & _
            "InstanceName: {0,-31} RawValue: {1}", _
            instData.InstanceName, instData.Sample.RawValue)
        Console.WriteLine("    From CounterSample:" & vbCrLf & "      " & _
            "CounterType: {0,-32} SystemFrequency: {1}" & vbCrLf & _
            "      BaseValue: {2,-34} RawValue: {3}" & vbCrLf & _
            "      CounterFrequency: {4,-27} CounterTimeStamp: {5}" & vbCrLf & _
            "      TimeStamp: {6,-34} TimeStamp100nSec: {7}", _
            sample.CounterType, sample.SystemFrequency, sample.BaseValue, _
            sample.RawValue, sample.CounterFrequency, sample.CounterTimeStamp, _
            sample.TimeStamp, sample.TimeStamp100nSec)
    End Sub
End Module

注解

类 InstanceDataCollection 表示包含计数器的所有实例数据的集合。 使用 ReadCategory 方法时，此集合包含在 中InstanceDataCollectionCollection。

构造函数

InstanceDataCollection(String)

已过时. 使用指定的性能计数器（定义性能实例）初始化 InstanceDataCollection 类的新实例。

属性

Count	获取 DictionaryBase 实例中包含的元素数。 (继承自 DictionaryBase)
CounterName	获取要获取其实例数据的性能计数器的名称。
Dictionary	获取 DictionaryBase 实例中包含的元素的列表。 (继承自 DictionaryBase)
InnerHashtable	获取 DictionaryBase 实例中包含的元素的列表。 (继承自 DictionaryBase)
Item[String]	获取与该计数器关联的实例数据。 这通常是一组原始计数器值。
Keys	获取对象和与该实例数据关联的对象的计数器注册表项。
Values	获取组成计数器实例数据的原始计数器值。

方法

Clear()	清除 DictionaryBase 实例的内容。 (继承自 DictionaryBase)
Contains(String)	确定集合中是否存在带有指定名称的性能实例（由一个索引 InstanceData 对象来标识）。
CopyTo(Array, Int32)	将 DictionaryBase 元素复制到位于指定索引处的一维 Array 中。 (继承自 DictionaryBase)
CopyTo(InstanceData[], Int32)	将集合中的项复制到指定一维数组中的指定索引处。
Equals(Object)	确定指定对象是否等于当前对象。 (继承自 Object)
GetEnumerator()	返回循环访问 IDictionaryEnumerator 实例的 DictionaryBase。 (继承自 DictionaryBase)
GetHashCode()	作为默认哈希函数。 (继承自 Object)
GetType()	获取当前实例的 Type。 (继承自 Object)
MemberwiseClone()	创建当前 Object 的浅表副本。 (继承自 Object)
OnClear()	在清除 DictionaryBase 实例的内容之前执行其他自定义进程。 (继承自 DictionaryBase)
OnClearComplete()	在清除 DictionaryBase 实例的内容之后执行其他自定义进程。 (继承自 DictionaryBase)
OnGet(Object, Object)	获取 DictionaryBase 实例中带有指定键和值的元素。 (继承自 DictionaryBase)
OnInsert(Object, Object)	在向 DictionaryBase 实例中插入新元素之前执行其他自定义进程。 (继承自 DictionaryBase)
OnInsertComplete(Object, Object)	在向 DictionaryBase 实例中插入新元素之后执行其他自定义进程。 (继承自 DictionaryBase)
OnRemove(Object, Object)	当从 DictionaryBase 实例移除元素时执行其他自定义进程。 (继承自 DictionaryBase)
OnRemoveComplete(Object, Object)	在从 DictionaryBase 实例中移除元素之后执行其他自定义进程。 (继承自 DictionaryBase)
OnSet(Object, Object, Object)	当在 DictionaryBase 实例中设置值之前执行其他自定义进程。 (继承自 DictionaryBase)
OnSetComplete(Object, Object, Object)	当在 DictionaryBase 实例中设置值后执行其他自定义进程。 (继承自 DictionaryBase)
OnValidate(Object, Object)	在验证具有指定键和值的元素时执行其他自定义进程。 (继承自 DictionaryBase)
ToString()	返回表示当前对象的字符串。 (继承自 Object)

扩展方法

另请参阅

• ReadCategory()
• InstanceDataCollectionCollection
• InstanceData
• CounterSample