XML Getting attributes of a specific value

[di_zou]

I have an XML document in this format:

<h1 Name="foo">
     <h2 Name="goo" h2ID="0">
             ...
     </h2>
     <h2 Name="hoo" h2ID="1">
             ...
     </h2>
     <h2 Name="joo" h2ID="2">
             ...
     </h2>
</h1>

<h1 Name="foo">
     <h2 Name="goo" h2ID="0">
             ...
     </h2>
     <h2 Name="hoo" h2ID="1">
             ...
     </h2>
     <h2 Name="joo" h2ID="2">
             ...
     </h2>
</h1>

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I want to create a function that lets the user input the h2ID value, and then return the h2 Name associated with that value. How would I go about doing that?

So far I have:

QString Program::getH2Name(int h2ID)
{
     QDomElement root = domDocument.documentElement();
     QDomElement child1 = root.firstChildElement("h1");
     QDomElement child2 = child1.firstChildElement();
     if (child2.tagName() == "h2") {
          return child2.attribute("Name");
     }
}

QString Program::getH2Name(int h2ID)
{
     QDomElement root = domDocument.documentElement();
     QDomElement child1 = root.firstChildElement("h1");
     QDomElement child2 = child1.firstChildElement();
     if (child2.tagName() == "h2") {
          return child2.attribute("Name");
     }
}

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This will only return the Name of the first h2 element: "goo". How do I get a specific h2 element using the h2ID? Thanks.

[Lykurg]

you can use QDomElement::elementsByTagName() and iterate over the returned list, till you get your id or use XQuery (->QXmlQuery).