Thanks very much Martin, your example clarified it for me perfectly! May I
ask a couple more questions?
I now have two more changes I need to implement. The first is a compound
key + reference.
<data>
<customerData >
<customer>
<customerSite >
<uniqueId>Custo merSite1</uniqueId>
<vendingLocatio ns>
<vendingLocatio n>
<vendingMachine s>
<vendingMachine >
<serialNumber>1 234</serialNumber>
<selections>
<selection>
<number>1</number>
</selection>
<selection>
<number>2</number>
</selection>
A site has many vending machines, each vending machine has many selections.
Later in my xml I need to reference a specific selection of a specific
vending machine
<data>
<roundData>
<visitDay>
<plannedVisit s>
<plannedVisit >
<customerSiteUn iqueId>Customer Site1</customerSiteUni queId>
<vendingMachine Visits>
<vendingMachine Visit>
<serialNumber>1 234</serialNumber>
<replenishments >
<selectionReple nishment>
<number>1</number>
</selectionReplen ishment>
<selectionReple nishment>
<number>2</number>
</selectionReplen ishment>
Could you tell me how I define a key on the vendingMachine/serialNumber +
selection/number, and also how to refer to that compound key from my
vendingMachineV isit/serialNumber +
replenishments/selectionReplen ishment/number?
Finally, this XML is going to be read on a Pocket PC so I want to keep it as
small as possible. I was considering making elements such as "name",
"serialNumb er" etc attributes instead. I tried changing this
<xs:element name="customerS ite">
<xs:complexType >
<xs:all>
<xs:element name="uniqueId" type="xs:string "/>
<xs:element name="name" type="xs:string "/>
<xs:element name="vendingLo cations">
..complex type information here
</xs:element>
</xs:all>
<xs:complexType >
</xs:element>
to this
<xs:element name="customerS ite">
<xs:complexType >
<xs:all>
<xs:attribute name="uniqueId" type="xs:string "/>
<xs:attribute name="name" type="xs:string "/>
<xs:element name="vendingLo cations">
..complex type information here
</xs:element>
</xs:all>
<xs:complexType >
</xs:element>
but XMLSpy says this is invalid. Could you tell me how to make the simple
element types into attributes and still mark them as required, whilst also
having required elements.
I really appreciate your help, it has enabled me to get some work finished
much quicker than I expected. Thank you!
Pete
