Split string, convert ToList() in one line

Question

I have a string that has numbers

string sNumbers = \"1,2,3,4,5\";

I can split it then convert it to List

Answer 1

also you can use this Extension method

public static List<int> SplitToIntList(this string list, char separator = ',')
{
    return list.Split(separator).Select(Int32.Parse).ToList();
}

usage:

var numberListString = "1, 2, 3, 4";
List<int> numberList = numberListString.SplitToIntList(',');

Answer 2

It is also possible to int array to direct assign value.

like this

int[] numbers = sNumbers.Split(',').Select(Int32.Parse).ToArray();

Answer 3

On Unity3d, int.Parse doesn't work well. So I use like bellow.

List<int> intList = new List<int>( Array.ConvertAll(sNumbers.Split(','),
 new Converter<string, int>((s)=>{return Convert.ToInt32(s);}) ) );

Hope this help for Unity3d Users.

Answer 4

My problem was similar but with the inconvenience that sometimes the string contains letters (sometimes empty).

string sNumbers = "1,2,hh,3,4,x,5";

Trying to follow Pcode Xonos Extension Method:

public static List<int> SplitToIntList(this string list, char separator = ',')
{
      int result = 0;
      return (from s in list.Split(',')
              let isint = int.TryParse(s, out result)
              let val = result
              where isint
              select val).ToList(); 
}