Question

I’ve got a big xml file and I’m parsing an xpath to insert values in it. This is a part of the xml file where I’m inserting some values:

<SERVICES>
    <RELATIONSHIPS>
         <RELATIONSHIP xlink:from="fromValue01" xlink:to="toValue01" />
         <RELATIONSHIP xlink:from="fromValue02" xlink:to="toValue02" />
         <RELATIONSHIP xlink:from="fromValue03" xlink:to="toValue03" />
         <RELATIONSHIP xlink:from="fromValue04" xlink:to="toValue04" />
         <RELATIONSHIP xlink:from="fromValue05" xlink:to="toValue05" />
         <RELATIONSHIP xlink:from="fromValue06" xlink:to="toValue06" />
         <RELATIONSHIP xlink:from="fromValue07" xlink:to="toValue07" />
    </RELATIONSHIPS>
<SERVICES>

Now, when I want to add more of these RELATIONSHIP nodes with same attributes but with different values (e.g. <RELATIONSHIP xlink:from="fromValue08" xlink:to="toValue08" />) I always get a Duplicate Attribute error. This would be example of the xpath I’m parsing:

/SERVICES/RELATIONSHIPS/RELATIONSHIP[@xlink:from="fromValue08" and @xlink:to="toValue08"]

The parser is too big of a code to just paste here, and I’m sure it’s working fine since it’s inserting all nodes just fine, only this part here is giving me some trouble.
I also checked the xpath with Altova and it works.

My question is: Is adding a node with same attributes but with different values allowed in XML? And if yes, why is Visual Studio always throwing this error?

Answer 1

It’s sure in relation with your XPath request maybe an index in missing for RELATIONSHIPS