TraceListenerCollection.Insert Method (Int32, TraceListener)
Inserts the listener at the specified index.
Assembly: System (in System.dll)
If the index equals the number of items in the list, then the listener is appended to the end of the list.
The index is zero-based. Therefore, if you want to insert the listener into the third position, you must call myTraceListenerColl.Insert(2, myNewListener).
Available since 1.1