Updated: September 2008
Gets the collection of listeners that is monitoring the debug output.
Public Shared ReadOnly Property Listeners As TraceListenerCollection
Dim value As TraceListenerCollection value = Debug.Listeners
public static TraceListenerCollection Listeners { get; }
public: static property TraceListenerCollection^ Listeners { TraceListenerCollection^ get (); }
public static function get Listeners () : TraceListenerCollection
The listeners produce formatted output from the debug output. By default, the collection contains an instance of the DefaultTraceListener class. To remove the default listener, call the Remove method, and pass it the instance of the DefaultTraceListener. To redirect output to the console window, add an instance of the ConsoleTraceListener. To redirect output to a file or stream, add an instance of the TextWriterTraceListener.
The Listeners collection is shared by both the Debug and the Trace classes; adding a trace listener to either class adds the listener to both.
The following example creates a TextWriterTraceListener that outputs to the console screen. The code then adds the new listener to the Listeners.
' Create a listener that outputs to the console screen, and ' add it to the debug listeners. Dim myWriter As New TextWriterTraceListener(System.Console.Out) Debug.Listeners.Add(myWriter)
/* Create a listener that outputs to the console screen, and * add it to the debug listeners. */ TextWriterTraceListener myWriter = new TextWriterTraceListener(System.Console.Out); Debug.Listeners.Add(myWriter);
// Create a listener that outputs to the console screen // and add it to the debug listeners. #if defined(DEBUG) TextWriterTraceListener^ myWriter = gcnew TextWriterTraceListener( System::Console::Out ); Debug::Listeners->Add( myWriter ); #endif
for operating with unmanaged code. Demand value LinkDemand; associated enumeration: SecurityPermissionFlag..::.UnmanagedCode.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
Date
History
Reason
September 2008
Added a note about the Listeners collection being shared with Trace.
Customer feedback.