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CounterCreationDataCollection.Contains Method

Determines whether a CounterCreationData instance exists in the collection.

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

public bool Contains(
	CounterCreationData value


Type: System.Diagnostics.CounterCreationData
The CounterCreationData object to find in the collection.

Return Value

Type: System.Boolean
true if the specified CounterCreationData object exists in the collection; otherwise, false.

The following example demonstrates how to use the Contains method to find a CounterCreationData object in a CounterCreationDataCollection.

string myCategoryName;
int numberOfCounters;
Console.Write("Enter the category Name :");
myCategoryName = Console.ReadLine();
// Check if the category already exists or not.
if (!PerformanceCounterCategory.Exists(myCategoryName))
    Console.Write("Enter the number of counters : ");
    numberOfCounters = int.Parse(Console.ReadLine());
    CounterCreationData[] myCounterCreationData =
       new CounterCreationData[numberOfCounters];
    for (int i = 0; i < numberOfCounters; i++)
        Console.Write("Enter the counter name for {0} counter : ", i);
        myCounterCreationData[i] = new CounterCreationData();
        myCounterCreationData[i].CounterName = Console.ReadLine();
    CounterCreationDataCollection myCounterCollection =
       new CounterCreationDataCollection();
    // Add the 'CounterCreationData[]' to 'CounterCollection'.

       "Sample Category",
    PerformanceCounterCategoryType.SingleInstance, myCounterCollection);

    if (myCounterCreationData.Length > 0)
        if (myCounterCollection.Contains(myCounterCreationData[0]))
            Console.WriteLine("'{0}' counter is removed from the " +
               "CounterCreationDataCollection", myCounterCreationData[0].CounterName);
        Console.WriteLine("The counters does not exist");
    Console.WriteLine("The category already exists");

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.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.