source.cpp

#using <System.dll>
usingnamespaceSystem;
usingnamespaceSystem::Diagnostics;

public ref classTest
{
//<Snippet1>
// Class-level declaration.
// Create a TraceSwitch.
static TraceSwitch^ generalSwitch = 
 gcnew TraceSwitch( "General","Entire Application" );

public:
staticvoidMyErrorMethod( Object^ myObject )
 {
// Write the message if the TraceSwitch level is set to Error or higher.
if ( generalSwitch->TraceError )
 {
 #if defined(DEBUG)
Debug::Write( "Invalid object. " );
 #endif
 }
// Write a second message if the TraceSwitch level is set to Verbose.
if ( generalSwitch->TraceVerbose )
 {
 #if defined(DEBUG)
Debug::WriteLine( myObject );
 #endif
 }
 }
//</Snippet1>
};