QML model item text change - data is changing in c++ but not on screen (unless you flip to another screen and back)

Dolphin

I need to update current data (in this instance an download progress - list of items a user can download needs to have a progress by the ones currently downloading). So the items in the list should update as appropriate but you should still be able to up/down arrow on the list. The data is updated in the c++. If I update the whole list the up/down arrows do not work because the list is constantly being refreshed. The c++ is changing the data which emits the onChanged but nothing on screen changes.

if I use this the screen refreshes constantly because there it is 'new' data so the QML resets the index (I assume)
@
getGuide()->updateQMLView(QVariant::fromValue(m_model));
@

The objects in my list are
@
class CDetails : public QObject
{
Q_OBJECT

public:
CDetails();
~CDetails(void);

//QML properties

Q_PROPERTY(QString displayText READ getQML_displayText WRITE setQML_displayText NOTIFY QML_displayTextChanged)
QString getQML_displayText();
void setQML_displayText(QString text);
QString QML_displayText;

...
signals:
void QML_displayTextChanged();

};
@

A breakpoint here shows the method is being called when expected
@
void CDetails::setQML_displayText(QString text)
{
QML_displayText = text;
emit QML_displayTextChanged();
}
@

portoist

Could you show us how do you use it in QML?