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.
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]);
Here you go.
string numbers = "1,5,7";List<int> numlist = new List<int>();foreach (string number in numbers.Split(',')) numlist.Add(Int32.Parse(number));