public void EditClass(int id, string code, string name, DateTime birthday, string address, string location, int salary)
{
var db = new MyDatabaseEntities();
var oldEmployee = db.Employees.Find(id);
oldEmployee.Code = code;
oldEmployee.Name = name;
oldEmployee.Birthday = birthday;
oldEmployee.Address = address;
oldEmployee.Location = location;
oldEmployee.Salary = salary;
db.Entry(oldEmployee).State = System.Data.Entity.EntityState.Modified;
db.SaveChanges();
}
