public override int GetHashCode()
{
unchecked
{
int result = (Visitor != null ? Visitor.GetHashCode() : 0);
result = (result * 397) ^ (Cashier != null ? Cashier.GetHashCode() : 0);
result = (result * 397) ^ (Film != null ? Film.GetHashCode() : 0);
result = (result * 397) ^ DataSale.GetHashCode();
return(result);
}
}
