Why can I not use array definition in a method call?

Question

I have this code:

char[] c = {','};
string[] s = someString.Split(c, StringSplitOptions.RemoveEmptyEntries);

I want to rewrite it as:

string[] s = someString.Split({ ',' }, StringSplitOptions.RemoveEmptyEntries);

but that gives a syntax error. Why can I not use { ',' } in a method call?

Answer 1

string[] s = someString.Split(new [] { ',' }, StringSplitOptions.RemoveEmptyEntries);

Answer 2

You need to create an instance of char array with the new keyword: new [] {','} or use another Split version and filter empty string afterwards:

var s = someString.Split(',').Where(i => !String.IsNullOrEmpty(i)).ToArray();