Simple trace aspect in PostSharp

gistfile1.cs

[Serializable]
public class TraceAttribute : OnMethodBoundaryAspect
{
    public override void OnEntry(MethodExecutionEventArgs args)
    {
        Trace.TraceInformation("Entering {0}.", args.Method); 
    }

    public override void OnExit(MethodExecutionEventArgs args)
    {
        Trace.TraceInformation("Leaving {0}.", args.Method); 
    }
}