TraceListenerCollection.Contains Method (TraceListener)

 

Checks whether the list contains the specified listener.

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

Public Function Contains (
	listener As TraceListener
) As Boolean

Parameters

listener
Type: System.Diagnostics.TraceListener

A TraceListener to find in the list.

Return Value

Type: System.Boolean

true if the listener is in the list; otherwise, false.

The Contains method can confirm the existence of a TraceListener before you perform further operations.

.NET Framework
Available since 1.1
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