Logging entry and exit of methods along with parameters automagically?

Question

Is there a way for me to add logging so that entering and exiting methods gets logged along with parameters automatically somehow for tracing purposes? How would I do so?

Answer 1

Functions

To expand on Jared's answer, avoiding code repetition and including options for arguments:

private static void LogEnterExit(bool isEnter = true, params object[] args)
{
    StackTrace trace = new StackTrace(true);  // need `true` for getting file and line info
    if (trace.FrameCount > 2)
    {
        string ns = trace.GetFrame(2).GetMethod().DeclaringType.Namespace;
        string typeName = trace.GetFrame(2).GetMethod().DeclaringType.Name;
        string args_string = args.Length == 0 ? "" : "\narguments: [" + args.Aggregate((current, next) => string.Format("{0},{1};", current, next))+"]";
        Console.WriteLine("{0} {1}.{2}.{3}{4}", isEnter ? "Entering" : "Exiting", ns, typeName, trace.GetFrame(2).GetMethod().Name, args_string );
    }
}

static void LogEnter(params object[] args)
{
    LogEnterExit(true, args);
}

static void LogExit(params object[] args)
{
    LogEnterExit(false, args);
}

Usage

static void DoSomething(string arg1)
{
    LogEnter(arg1);
    Console.WriteLine("Executing DoSomething");
    LogExit();
}

Output

In the console, this would be the output if DoSomething were run with "blah" as arg1

Entering Program.DoSomething
arguments: [blah]
Executing DoSomething
Exiting Program.DoSomething