VendorReceiptFactory filtering

I would like to filter the List with a customer ID.  The VB code looks like this:

     Dim p As Sage.Peachtree.API.VendorReceiptList = Me.company.Factories.VendorReceiptFactory.List()
     Dim vendorFilter = PropertyFilterExpression.Equal(PropertyFilterExpression.Property("Customer.ID"),
             PropertyFilterExpression.Constant(customerId))
     Dim vendorModifyer = LoadModifiers.Create()
     vendorModifyer.Filters = vendorFilter
     p.Load(vendorModifyer)

The Customer.ID does not work.  Other strings which have been tested ad do not work:

VendorReceipt.CustomerID, VendorReceipt.CustomerID, VendorReceipt.....

As already mentioned in other Questions it would be nice to have a list of Property Filters for all Factory Lists.