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
)

Parameters

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'.
    myCounterCollection.AddRange(myCounterCreationData);

    PerformanceCounterCategory.Create(myCategoryName,
       "Sample Category",
    PerformanceCounterCategoryType.SingleInstance, myCounterCollection);

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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