Hi,

Bit of a strange query with XPath here. Essentially I have an XML
document with multiple lists, each containing multiple items. Some
items can only be available depending on specific values being
selected in other lists. So a typical XML chunk may look like this:

<list id="4"
   <item id="1" text="Leeds">
     <dependentlist id="1">
       <dependentitem id="1" />
     </dependentlist>
     <dependentlist id="2">
       <dependentitem id="1" />
     </dependentlist>
   </item>
 </list>

Meaning that this item is only available if item 1 has been selected
in list 1, AND item 1 has been selected in list 2.

Now I am using XPath to get items for a list, and the selected items.
So I am basically looking for all the item nodes where the
dependentlist is 1 AND 2, and the relevant item id is selected.

Now I have tried:

/lists/list[@id='4']/item/dependentlist/dependentitem[@id='1']/
parent::*[@id='1' and @id='2']/parent::*

But this obviously doesn't work since the parent node doesn't have
@ids of 1 and 2. I have also tried

/lists/list[@id='4']/item/dependentlist/dependentitem[@id='1']/
parent::*[@id='1' or @id='2']/parent::*

But again, not right since it finds items with dependentlists of 1 OR
2 = whereas I want both.

So in plain english, I want to return all the item nodes that contain
all nodes for specified dependentlists (in the example above, 1 and
2). So if I searched for dependentlists 1 and 3, nothing would be
returned.

Is this even possible? Can anyone give me a nudge in the right
direction? :)

Please go easy on me, I am fairly new to this Xpath stuff!

Thanks

Steve