InstanceDataCollectionCollection Class
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InstanceDataCollectionCollection Class

 

Provides a strongly typed collection of InstanceDataCollection objects.

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

System.Object
  System.Collections.DictionaryBase
    System.Diagnostics.InstanceDataCollectionCollection

public class InstanceDataCollectionCollection : DictionaryBase

NameDescription
System_CAPS_pubmethodInstanceDataCollectionCollection()

Obsolete.Initializes a new instance of the InstanceDataCollectionCollection class.

NameDescription
System_CAPS_pubpropertyCount

Gets the number of elements contained in the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protpropertyDictionary

Gets the list of elements contained in the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protpropertyInnerHashtable

Gets the list of elements contained in the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_pubpropertyItem[String]

Gets the instance data for the specified counter.

System_CAPS_pubpropertyKeys

Gets the object and counter registry keys for the objects associated with this instance data collection.

System_CAPS_pubpropertyValues

Gets the instance data values that comprise the collection of instances for the counter.

NameDescription
System_CAPS_pubmethodClear()

Clears the contents of the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_pubmethodContains(String)

Determines whether an instance data collection for the specified counter (identified by one of the indexed InstanceDataCollection objects) exists in the collection.

System_CAPS_pubmethodCopyTo(Array, Int32)

Copies the DictionaryBase elements to a one-dimensional Array at the specified index.(Inherited from DictionaryBase.)

System_CAPS_pubmethodCopyTo(InstanceDataCollection[], Int32)

Copies an array of InstanceDataCollection instances to the collection, at the specified index.

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetEnumerator()

Returns an IDictionaryEnumerator that iterates through the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_protmethodOnClear()

Performs additional custom processes before clearing the contents of the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnClearComplete()

Performs additional custom processes after clearing the contents of the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnGet(Object, Object)

Gets the element with the specified key and value in the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnInsert(Object, Object)

Performs additional custom processes before inserting a new element into the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnInsertComplete(Object, Object)

Performs additional custom processes after inserting a new element into the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnRemove(Object, Object)

Performs additional custom processes before removing an element from the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnRemoveComplete(Object, Object)

Performs additional custom processes after removing an element from the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnSet(Object, Object, Object)

Performs additional custom processes before setting a value in the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnSetComplete(Object, Object, Object)

Performs additional custom processes after setting a value in the DictionaryBase instance.(Inherited from DictionaryBase.)

System_CAPS_protmethodOnValidate(Object, Object)

Performs additional custom processes when validating the element with the specified key and value.(Inherited from DictionaryBase.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethodIDictionary.Add(Object, Object)

Adds an element with the specified key and value into the DictionaryBase.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIDictionary.Contains(Object)

Determines whether the DictionaryBase contains a specific key.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIDictionary.Remove(Object)

Removes the element with the specified key from the DictionaryBase.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIEnumerable.GetEnumerator()

Returns an IEnumerator that iterates through the DictionaryBase.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyICollection.IsSynchronized

Gets a value indicating whether access to a DictionaryBase object is synchronized (thread safe).(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyICollection.SyncRoot

Gets an object that can be used to synchronize access to a DictionaryBase object.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIDictionary.IsFixedSize

Gets a value indicating whether a DictionaryBase object has a fixed size.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIDictionary.IsReadOnly

Gets a value indicating whether a DictionaryBase object is read-only.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIDictionary.Item[Object]

Gets or sets the value associated with the specified key.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIDictionary.Keys

Gets an ICollection object containing the keys in the DictionaryBase object.(Inherited from DictionaryBase.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIDictionary.Values

Gets an ICollection object containing the values in the DictionaryBase object.(Inherited from DictionaryBase.)

NameDescription
System_CAPS_pubmethodAsParallel()

Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)

System_CAPS_pubmethodAsQueryable()

Overloaded. Converts an IEnumerable to an IQueryable.(Defined by Queryable.)

System_CAPS_pubmethodCast<TResult>()

Casts the elements of an IEnumerable to the specified type.(Defined by Enumerable.)

System_CAPS_pubmethodOfType<TResult>()

Filters the elements of an IEnumerable based on a specified type.(Defined by Enumerable.)

The InstanceDataCollectionCollection class represents the collection returned from the ReadCategory method. This collection contains all the counter and instance data. The collection contains an InstanceDataCollection object for each counter. Each InstanceDataCollection object contains the performance data for all counters for that instance. Thus, the data is indexed by counter name and then by instance name.

The following code example displays the instance data for a particular PerformanceCounterCategory on the local computer. It first displays a numbered list of PerformanceCounterCategory names. After the user enters the number of one of the categories, the example gets the InstanceDataCollectionCollection for that PerformanceCounterCategory. It then converts the collection returned by the Values property to an array of InstanceDataCollection objects. The example displays the instance data associated with each InstanceData of each 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);
    }
}

.NET Framework
Available since 1.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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