newbie needs schema help

[lfc77]

I have an element which can only appear once in my XML document and has 1 attribute. The attribute determines what elements are accepted within this element. For example, my XML document can have this element :

<service type="request">
<type>ukgeo</type>
<area>441280</area>
<pay>card</pay>
</service>

or this one, but not more than 1 service element.

<service type="change">
<info>
<number>441173060201</number>
<subcug>1234</subcug>
<pay>card</pay>
<currency>gbp</currency>
<language>eng</language>
<cash>20.00</cash>
</info>
</service>

I'm new to writing schemas and I'm not sure how to do this, or whether this is a simple or complex problem.

If anybody can help me out it would be really appreciated.


Cheers,

lfc

 

[sedj]

In you schema .xsd file :

<xsd:element name="service" minOccurs="0" maxOccurs="1">

 

[lfc77]

But how do I make it so that if type="request" it only accepts <type>, <area> and <pay>, and if type="change" it only accepts <info>?

lfc