public dish_group_set() {
DataTable dt = new DataTable();
db_adapter db = new db_adapter();
dt = db.get_all_ids_dish_type();
int count = dt.Rows.Count;
dish_group = new dish_group[count];
for (int i = 0; i < count; i++) {
dish_group[i] = new dish_group( dt.Rows[i].Field<int>("id") );
}
}
