Which Of The Following Sample Code Is Used To Select Data Using #448

 public bool IsValidUser(string userName, string passWord) { DBNameDataContext myDB = new DBNameDataContext(); return Enumerable.Count(userResults) > 0; } 

 public bool IsValidUser(string userName, string passWord) { DBNameDataContext myDB = new DBNameDataContext(); var userResults = from u in myDB.Users where u.Username == userName && u.Password == passWord select u; return Enumerable.Count(userResults) == 0; }