What's the most simple way to convert comma separated string to int[]? [duplicate]

Question

So I have comma-separated string like 1,5,7, so what's the most simple and native way to convert this string to int[]? I can write my own split function, but there's some interest how to do it in most native way. Thanks in advance guys!

Answer 1

string s = "1,5,7"; int[] nums = Array.ConvertAll(s.Split(','), int.Parse); 

or, a LINQ-y version:

int[] nums = s.Split(',').Select(int.Parse).ToArray(); 

But the first one should be a teeny bit faster.

Answer 2

string numbers = "1,5,7"; string[] pieces = numbers.Split(new string[] { "," },                                   StringSplitOptions.None);  int[] array2 = new int[pieces.length];  for(int i=0; i<pieces.length; i++)     array2[i] = Convert.ToInt32(pieces[i]);