An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
Too many characters in character literal
You used apostrophe = character and that can be only one char.
You can also pass a string array to Split function, and in a string you can use more then one char:
var sep = new string[] { ", " };
string[] subs = s.Split(sep, StringSplitOptions.None);