D365 try catch how to get exact error message

HOW TO GET ERROR MESSAGE IN TRY CATCH

System.Exception exception;

try

{

}

catch(Exception::CLRError)
{
exception = CLRInterop::getLastException();
while(exception)
{
error( exception.get_Message() );
exception = exception.get_InnerException();
}
throw Exception::Error;
}

NOTE: Code inside the catch statement will only get executed of the tts level is zero.

Thanks,

Vikas Mehta