Listing DataTable values
===

I have a DataTable (`id`) that has one column (`LinkID`). The items in the rows for this column are numbers. I am trying to list these numbers in the following format:

    1, 2, 30, 494, etc...

How would I get all of the numbers and list them in that way?

Here is what I have tried:

    foreach (DataRow row in id.Rows)
    {
        foreach (DataColumn column in id.Columns)
        {
            var test = row[0].ToString();
            List<string> ls = new List<string>();
            ls.Add(test);
            MessageBox.Show(ls.ToString());
        }
    }