public List <tEmployee> test(string test, string city = "", string code = "emp01")
 {
     using (OrganizationDBEntities db = new OrganizationDBEntities())
     {
         return(db.tEmployees.Where(x => x.code == code).ToList());
     }
 }
 public List <tEmployee> Get()
 {
     using (OrganizationDBEntities db = new OrganizationDBEntities())
     {
         return(db.tEmployees.ToList());
     }
 }
 public tEmployee Get(string code)
 {
     using (OrganizationDBEntities db = new OrganizationDBEntities())
     {
         var emp = db.tEmployees.Where(x => x.code == code).FirstOrDefault();
         return(emp);
     }
 }