How to refer to an identifier without writing it into a string literal in C#?

Question

I often want to do this:

public void Foo(Bar arg)
{
  throw new ArgumentException(\"Argument is incompatible with \" +         


        

Answer 1

well, you could cheat and use something like:

public static string CallerName([CallerMemberName]string callerName = null)
{
    return callerName;
}

and:

public void Foo(Bar arg)
{
  throw new ArgumentException("Argument is incompatible with " + CallerName());
}

Here, all the work is done by the compiler (at compile-time), so if you rename the method it will immediately return the correct thing.