QDomDocument and reading XML

[estanisgeyer]

Hi,

The tag "Input" is child the node "Node". Is its problem.

Marcelo E. Geyer

[prashant]

Not able to get the child nodes of "Node" this way:

for(signed i(0); i<n.childNodes().count();i++){
 
        QDomNode childNode = n.childNodes().item(i);
        QDomElement e = childNode.toElement();
        QString name = e.tagName();
        if(name == "Input") {
 
            QString name1 = e.attribute("name","");
            QString type1 = e.attribute("type","");
            QString value1 = e.attribute("value","");
 
            qDebug() << name1 << type1 << value1;
        }

for(signed i(0); i<n.childNodes().count();i++){
           
        QDomNode childNode = n.childNodes().item(i);
        QDomElement e = childNode.toElement();
        QString name = e.tagName();
        if(name == "Input") {

            QString name1 = e.attribute("name","");
            QString type1 = e.attribute("type","");
            QString value1 = e.attribute("value","");

            qDebug() << name1 << type1 << value1;
        }

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It's because:

n.hasChildNodes(); // = 0

n.hasChildNodes(); // = 0

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[prashant]

I didn't find any solution so far. May be some one point out the solution.

Cheers

Prashant

[faldzip]

chage this:

QDomNode n = doc.firstChild();

QDomNode n = doc.firstChild();

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to this:

QDomElement e = doc.documentElement(); // now e contains "Node" - it's a document element - means root element

QDomElement e = doc.documentElement(); // now e contains "Node" - it's a document element - means root element

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and use QDomElements if you want to get only elements. You can iterate through "Node" childs like this:

QDomElement child = e.firstChildElement();
while (!child.isNull()) {
    // do sth with child
    // it should be "Input" in first iteration and "Output" in second one
    child = child.nextSiblingElement();  // move 'child' to be the next sibling element
}

QDomElement child = e.firstChildElement();
while (!child.isNull()) {
    // do sth with child
    // it should be "Input" in first iteration and "Output" in second one
    child = child.nextSiblingElement();  // move 'child' to be the next sibling element
}

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