tx.cs

class SalesOrderHeader
{
    public int RevisionNumber { get; set; }
    public DateTime OrderDate { get; set; }
    public SalesOrderDetail OrderDetail { get; set; }
}

class SalesOrderDetail
{
    public List<Production_Product> Products { get; set; }
    public Customer Customer { get; set; }
}

class Production_Product
{
    public string Name { get; set; }
    public string ProductNumber { get; set; }
}

class Customer
{
    public int CustomerID { get; set; }
    public string Name { get; set; }
    public int SalesPersonID { get; set; }
}