Setting property based on role

Babalas

I might be missing something but I can't find out to set the property based on the role coming in from TableView. If I was using a ListModel then I would have
@ListModel { id: mymodel ...}
...
onAccepted: { myModel.setProperty(rowIndex, role, value) }
@

Except I'm using a QObjectList so instead I would expect
@onAccepted: { myModel[rowIndex].setProperty(role, value) }@
to work but setProperty doesn't exist.

So how do I set the property dynamically like this?

portoist

By QObjectList you mean QList<QObject*> exposed to QML? If so, then you need you need to have something like this in class you use in your list:
@
Class Ajax: public QObject{
Q_OBJECT
Q_PROPERTY(QString property READ property WRITE setProperty NOTIFY propertyChanged)
public:
....
QString property() const; void setProperty(QString const &value);
signal:
propertyChanged
}
@
And than in QML you should be able to do:
@
onAccepted: { myModel[rowIndex].property=value }
@

Babalas

Its the 'property' part I want to call dynamically. I.e. in my class I've got properties named, "key", "value", "section". The table then displays those values. Role in this case contains one of those values and so I want to set the appropriate property based on that role. If I was using the ListModel I would be able to do this by calling setProperty on the model.
You did give me an idea though. Maybe I can expose the QObject::setProperty method to QML

fludwig

Hi Babalas,
did you find a solution over the last months? I'm sitting on the same problem at the moment...

I also would like to call modelname.setProperty on a QObject list exposed from C++.

Best regards
Florian.

Babalas

Sort of. I got around the problem by creating custom delegates that I then let handle input.
So the table
@
TableView {
...
TableViewColumn {
role: "value"; title: "Value"; delegate: selectDelegate
}
@

The delegate
@
Component {
id: selectDelegate
Item {
function select(model) {
switch(model.definition.type) .... // this is just an enum defined in my code
return aComponent
}

Component {
id: aComponent
// Something that can handle clicking and so forth
}

Loader {
  property var localModel
  sourceComponent: select(model[styleData.row])
  Binding on localModel {
    when: status == Loader.Ready
     value: model[styleData.row]
}

}
}
@

Since I end up with a delegate of my own I get to choose explicitly how localModel maps to my controls. In my case its a property editor so I have multiple types of components to handle color, text, date, etc so you could simplify this down.