Convert C# object to CSV generic method.

gistfile1.txt

public static string ToCsv<T>(string separator, IEnumerable<T> objectlist) 
{ 
Type t = typeof(T); 
FieldInfo[] fields = t.GetFields(); 

string header = String.Join(separator, fields.Select(f => f.Name).ToArray()); 

StringBuilder csvdata = new StringBuilder(); 
csvdata.AppendLine(header); 

foreach (var o in objectlist) 
csvdata.AppendLine(ToCsvFields(separator, fields, o)); 

return csvdata.ToString(); 
} 

public static string ToCsvFields(string separator, FieldInfo[] fields, object o) 
{ 
StringBuilder linie = new StringBuilder(); 

foreach (var f in fields) 
{ 
if (linie.Length > 0) 
linie.Append(separator); 

var x = f.GetValue(o); 

if (x != null) 
linie.Append(x.ToString()); 
} 

return linie.ToString(); 
} 

If a class collection like List is passed in this function
List listCustomers = new List();
ToCsv(",", listCustomers);

Then replace the FieldInfo with PropertyInfo. This code is working for with this change.
Thanks