Find Field Count and Field names in Variable Type

How can I find the FieldCount and Field names?  Code is below.

 
Thanks,
arep 



             using (StreamWriter sw = new StreamWriter("Output.txt"))
             {
                foreach (var v in DedOopLib.DebOop.nested)
                {
                   foreach (var i in v.Value.Values)
                   {
                       for (int fcnt = 0; fcnt < i.ToString().FieldCount; fcnt++)
                      {
                         sw.Write("\"");
                         sw.Write(i.GetName(fcnt));
                         sw.Write("\"");
                         if (fcnt != sw.FieldCount - 1) sw.Write(",");
                      }