Question

I have the following xml:

<Root>
    <SomethingA/>
    <SomethingB/>
    <SomethingC/>
    <SomeOtherThing action="Foo">
        <Bar/>
        <Bar/>
    </SomeOtherThing>
    <SomeOtherThing action="Poo">
        <BarFoo/>
        <BarNoo/>
    </SomeOtherThing>
</Root>

I want to create a schema, that will validate that if the element is SomeOtherThing, then if the action is Foo the child element can only be Bar; if the action is Poo then the child elements can be BarFoo (and/or) BarNoo.

Any ideas on how it can be accomplish (using only xsd)?

Also, the solution need to work on C#.

Answer 1

This kind of conditional validation cannot be done in XSD 1.0. It can be done in XSD 1.1 using the feature called “conditional type assignment”.