public static void UnpackContacts(string contacts, ImagedLabelList contactList)
 {
     contactList.Labels.Clear();
     if (string.IsNullOrEmpty(contacts))
         return;
     contactList.Labels = new List<string>(contacts.Split(new[] { '\n' }));
 }
 public static string PackContacts(ImagedLabelList contactList)
 {
     return string.Join("\n", contactList.Labels);
 }