How do I find the type of the object instance of the caller of the current function?

Question

Currently I have the function CreateLog() for creating a a log4net Log with name after the constructing instance\'s class. Typically used as in:

class MessageRe         


        

Answer 1

Try the StackTrace.GetFrames method. It returns an array of all the StackFrame objects in the call stack. Your caller should be at index one.

class Program
{
    static void Main(string[] args)
    {
        Logger logger = new Logger();
        Caller caller = new Caller();
        caller.FirstMethod(logger);
        caller.SecondMethod(logger);
    }
}

public class Caller
{
    public void FirstMethod(Logger logger)
    {
        Console.Out.WriteLine("first");
        logger.Log();
    }

    public void SecondMethod(Logger logger)
    {
        Console.Out.WriteLine("second");
        logger.Log();
    }
}

public class Logger
{
    public void Log()
    {
        StackTrace trace = new StackTrace();
        var frames = trace.GetFrames();
        Console.Out.WriteLine(frames[1].GetMethod().Name);
    }
}

this outputs

first FirstMethod second SecondMethod