LINQ: How do I concatenate a list of integers into comma delimited string?

Question

It\'s probably something silly I missed, but I try to concatenate a list of integers instead of summing them with:

integerArray.Aggregate((accumulator, piece) =&         


        

Answer 1

You probably want to use String.Join.

string.Join(",", integerArray.Select(i => i.ToString()).ToArray());

If you're using .Net 4.0, you don't need to go through the hassle of reifying an array. and can just do

 string.Join(",", integerArray);