InstanceDataCollection Classe

Définition

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

public class InstanceDataCollection : System.Collections.DictionaryBase

type InstanceDataCollection = class
    inherit DictionaryBase

Public Class InstanceDataCollection
Inherits DictionaryBase

Héritage

Object

DictionaryBase

InstanceDataCollection

Exemples

L’exemple de code suivant affiche les données d’instance d’un particulier PerformanceCounterCategory sur l’ordinateur local. Il affiche d’abord une liste numérotée de PerformanceCounterCategory noms. Une fois que l’utilisateur entre le nombre d’une des catégories, l’exemple obtient pour InstanceDataCollectionCollection cela PerformanceCounterCategory. Il convertit ensuite la collection retournée par Values un tableau d’objets InstanceDataCollection . L’exemple affiche également les données d’instance associées à chacune InstanceData de ces instances InstanceDataCollection.

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

Remarques

La InstanceDataCollection classe représente une collection contenant toutes les données d’instance d’un compteur. Cette collection est contenue dans la InstanceDataCollectionCollection méthode lors de l’utilisation de la ReadCategory méthode.

Voir aussi

• ReadCategory()
• InstanceDataCollectionCollection
• InstanceData
• CounterSample