[Qt-interest] How Can I use ListView to show QIcons ?

[Kermit Mei]

On Wed, 2009-06-24 at 10:36 +0200, Alessandro Portale wrote:
> Kermit Mei schrieb:
> > QVariant ListModel::data(const QModelIndex &index, int role) const {
> >   if(index.isValid())
> >     return QVariant(icons.at(index.column()));
> >   else
> >     return QVariant();
> > }
> 
> You need to consider the data role. Only return an icon, when role == 
> Qt::DecorationRole.
> 
> Alessandro

Yes,I see. Thanks you all to help me.

But, I always can't understand the thinking of the keyword 'role' here.
And I can't understand it in the other model.
Can you give me some link about it?

Thank you, very much!
 
Kermit