MVC JNSON

// 

public ActionResult GetContactsJSON(string id)
{
if (string.IsNullOrEmpty(id))
{
return Json(_ctx.Contacts.OrderBy(cnt => cnt.FirstName).Take(100).ToList(), JsonRequestBehavior.AllowGet);
}
else
{

return Json(_ctx.Contacts.Where(cnt => cnt.FirstName.StartsWith(id)).OrderBy(cnt => cnt.FirstName).Take(100).ToList(), JsonRequestBehavior.AllowGet);

}
}
public ActionResult GetContactJSON(int id)
{

return Json(_ctx.Contacts.SingleOrDefault(cnt => cnt.ContactID == id), JsonRequestBehavior.AllowGet);

}