Convert List elements to String

Question

What is the best way to convert list of Int32 to a string with a separator like ',' in C#?

possible duplicate http://stackoverflow.com/questions/4981390/how-to-convert-list-to-string-in-c — , Oct 02 '12 at 08:32

cuongle · Accepted Answer · 2012-10-02T08:25:37.137

7

You can use string.Join:

var intList = new[] { 1, 2, 3, 4, 5 };
var result = string.Join(",", intList);

Edit:

If you are from .NET 4.0, string.Join accepts input parameter as IEnumerable<T>, so you don't need to convert to Array by ToArray.

But if you are in .NET 3.5: like other answers, ToArray should be used.

edited Oct 02 '12 at 08:25

answered Oct 02 '12 at 08:20

cuongle

score 3 · Answer 2 · answered Oct 02 '12 at 08:20

3

string Result = string.Join(",", MyList.ToArray());

answered Oct 02 '12 at 08:20

bAN

score 3 · Answer 3 · answered Oct 02 '12 at 08:23

3

Join on a string: String.Join(",", list.ToArray());

answered Oct 02 '12 at 08:23

Lewis Harvey

score 2 · Answer 4 · answered Oct 02 '12 at 08:21

2

string commaSeparated = String.Join(",", Intlist.ToArray());

answered Oct 02 '12 at 08:21

CloudyMarble

4 Answers4