[Qt-qml] C++ Data Models and plugin mechanism

warwick.allison at nokia.com warwick.allison at nokia.com
Wed May 19 03:16:05 CEST 2010


> QDeclarativeExpression: Expression "(function() { return
> myPluggedInObj.myModel })" depends on non-NOTIFYable properties:

This message means that one of the properties in the expression does not have a NOTIFY signal, so if it changes, the expression will not be re-evaluated, so this:

> > Q_PROPERTY(QStringList myModel READ myModel);

Would need to be:

Q_PROPERTY(QStringList myModel READ myModel NOTIFY myModelChanged)

And when the list of strings changed (because of some mechanism in the C++ code), you would emit myModelChanged() to tell the QML to update all dependant expressions (bindings).

--
Warwick




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