Comma “izing” a list of items

Question

Given a list of strings, what is the best method for concatenating these strings into a comma separated list with no comma at the end. (VB.NET or C#) (Using either StringBuilder

Answer 1

Would you believe there's a class in the .NET framework which provides this functionality?

public static string ListToCsv(List list)
        {
            CommaDelimitedStringCollection commaStr = new CommaDelimitedStringCollection();

            list.ForEach(delegate(T item)
            {
                commaStr.Add(item.ToString());
            });


            return commaStr.ToString();
        }