Why is the generic delegate does not accept my method?

I've created a generate delegate as a test and wanted it to assign it to a variable, but it seems it's not accepting it. Did I make a mistake in the syntax or in the design of this?

GetPLCName does not take a string as a parameter

The required delegate here is string Key(string key)

ah, the delegate needed to be declared like this

but this makes it so that the delegate can not take any arguments

yes

which would be incorrect in my place, since I want the methods to take in arguments...and sometimes not

huh

Well, you can't do that

A delegate has to match the exact definition

ah, makes sense now

thank you

You can't have "sometimes takes arguments, sometimes not"

np

huh, how do I do that?

forgot 't

😄

okay,thank you, how do I close the post? mark it as "resolved" or something?

idk how these forums threads really work yet