Question

I’m using qt 4.4.3 with c++. I want to implement a QDomDocumentFragment object, and pass it as a return value for a function. I am using it the same way as QDomElement objects, with appendChild():

QDomDocumentFragment rootnode;  QDomNode initmodnode = doc.createElement('initmod'); QDomText initmodval = doc.createTextNode('4'); initmodnode.appendChild(initmodval); rootnode.appendChild(initmodnode); 

After inserting 7 other nodes in this way, and returning from the function, I noticed that calling insertAfter() on a QDomElement node with the returned QDomDocumentFragment was not inserting any new children. After debugging with the following code inside the function, I realized no nodes were actually getting inserted into rootnode:

QMessageBox::information(this->owner, QObject::tr('Debug'), QObject::tr('Node has children: ')+QString::number(rootnode.childNodes().size())); 

The Message printed was ‘Node has children: 0’. What am I missing here?

Answer 1

Ok sorry for wasting everyone’s time.. looks like I needed to create the document fragment using:

QDomDocumentFragment rootnode = doc.createDocumentFragment();