Hello All,

I would like to enforce validation based on the existence of absence of a certain value in the input XML.

So if my XML is as shown below.

<root>
<a>hello</a>
<b>world</b>
</root>

I would like to add a rule which says that node b, shouldnt be empty if the value of node a is "hello".

It looks very simple, but i am not able to figure out, how i can write an xpath within xsd:restriction and then check for a particular value.

Any help would be great!!!

Regards,
Sinu