CounterCreationDataCollection::Contains Method (CounterCreationData^)

 

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 = Int32::Parse( Console::ReadLine() );
   array<CounterCreationData^>^ myCounterCreationData =
      gcnew array<CounterCreationData^>(numberOfCounters);
   for ( int i = 0; i < numberOfCounters; i++ )
   {
      Console::Write( "Enter the counter name for {0} counter : ", i );
      myCounterCreationData[ i ] = gcnew CounterCreationData;
      myCounterCreationData[ i ]->CounterName = Console::ReadLine();
   }
   CounterCreationDataCollection^ myCounterCollection =
      gcnew CounterCreationDataCollection;
   // Add the 'CounterCreationData[]' to 'CounterCollection'.
   myCounterCollection->AddRange( myCounterCreationData );

   PerformanceCounterCategory::Create( myCategoryName,
      "Sample Category", myCounterCollection );

   for ( int i = 0; i < numberOfCounters; i++ )
   {
      myCounter = gcnew PerformanceCounter( myCategoryName,
         myCounterCreationData[ i ]->CounterName, "", false );
   }
   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
Available since 1.1
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