TraceListenerCollection.IndexOf(TraceListener) Method    
Definition
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Gets the index of the specified listener.
public:
 int IndexOf(System::Diagnostics::TraceListener ^ listener);
	public int IndexOf(System.Diagnostics.TraceListener? listener);
	public int IndexOf(System.Diagnostics.TraceListener listener);
	member this.IndexOf : System.Diagnostics.TraceListener -> int
	Public Function IndexOf (listener As TraceListener) As Integer
	Parameters
- listener
 - TraceListener
 
A TraceListener to find in the list.
Returns
The index of the listener, if it can be found in the list; otherwise, -1.