.Net - Join together all item of a list in a output string

Question

How can I write a Linq expression (or anything else) that select item from a List and join them together ?

Example

IList data = new List<         


        

Answer 1

You can use aggregate when you need to join a list into a single aggregated object.

string s = "";
if(data.Count > 0)
  s = data.Aggregate((a, b) => a + ',' + b);