Returning name of the concrete implementation of a func<> delegate

Question

tl;dr version: nameof(ToCelsius) returns ToCelsius. I want something that returns the name of the underlying function, ToCelsiusByA, though.

My ToCelsius is assigned a concrete implementation thus:

 Func<decimal,decimal> ToCelsius = ToCelsiusByA;

I then call the ToCelsius function:

var degreesC = ToCelsius(degreesF);

I'd like to name of the implemented function (ToCelsiusByA) returned, so I'm trying this:

Console.WriteLine(degreesF + " degrees F is " + degreesC + " degrees C! using " + nameof(ToCelsius));

but, of course, this shows 'ToCelsuis' in the string.

I think that you ask is only possible with reflection. – Nekeniehl Dec 07 '17 at 17:51 — Nekeniehl, Dec 07 '17 at 17:51
@Nekeniehl check out the answer below. – PakiPat Dec 07 '17 at 18:32 — PakiPat, Dec 07 '17 at 18:32
Always is a good time to learn =D – Nekeniehl Dec 07 '17 at 18:33 — Nekeniehl, Dec 07 '17 at 18:33

Marc Gravell · Accepted Answer · 2017-12-07T18:07:12.977

4

Console.WriteLine(theDelegate.Method.Name);

but note: this won't work well for a range of scenarios involving delegates such as combined delegates or lambdas / anonymous methods.

edited Dec 07 '17 at 18:07

answered Dec 07 '17 at 17:52

Marc Gravell

1 Answers1