Use QQmlListProperty to show and modify QList in Qml

Question

again, well i have a question (and maybe a problem), i make a program with qt and qml in qt5 and qml with qtquick 2.0, and i have a c++ model qlist, and i need modify the li

Answer 1

I got the answer for my self, first, I stopped using the attribute Q_INVOCABLE in the method append_concept, second, I added a line of code in the implementation of addConcept. Here is the code:

Before:

Q_INVOKABLE static void append_concept(QQmlListProperty *list, Concept *cpt);

Now:

static void append_concept(QQmlListProperty *list, Concept *cpt);

Maybe this not affect, but i prefer not take risks.

And in the implementations of addConcept and removeConcept:

 void ConceptsList::addConcept(QString m_id, QString quantity, QString price, QString unit, QString description)
 {
   Concept *cpt=new Concept(m_id, quantity, unit, price, description);

   m_concepts.append(cpt); 
   this->conceptsChanged();
 }

void ConceptsList::removeConcept(int index)
{
  m_concepts.removeAt(index);
  this->conceptsChanged();
}