static void ShowEmployee(int id, IEmployeeDataSource dataSource)
{
EmployeeInfo info = dataSource.GetEmployee(id);
Console.WriteLine("Id = {0}", info.Id);
Console.WriteLine("Name = {0}", info.Name);
}
static void SaveEmployee(int id, string name, IEmployeeDataSource dataSource)
{
EmployeeInfo info = dataSource.GetEmployee(id);
info.Id = id;
info.Name = name;
dataSource.SaveEmployee(info);
}