[Qt-interest] signal itemClicked and signal itemChanged of QTreeWidgetItem

[e.jokisch at orange-moon.de]

On Tuesday 02 March 2010 10:47:34 yanqzhi at gmail.com wrote:
> CProductTreeWidget::CProductTreeWidget(QWidget *parent)
> 
> : QTreeWidget(parent)
> 
> {
>  ui.setupUi(this);
>  mSelectedItem = NULL;
>  connect( this, SIGNAL( itemClicked( QTreeWidgetItem*, int ) ),
>   this, SLOT( itemSelect( QTreeWidgetItem*, int ) ) );
>  connect( this, SIGNAL( itemChanged( QTreeWidgetItem*, int ) ),
>   this, SLOT( updateCheckState( QTreeWidgetItem*, int ) ) );
> }
> 
> When I click the checkbox of a QTreeWidgetItem of the CProductTreeWidget, I
> found that the slot updateCheckState will be excuted firstly and the slot
> itemSelect will be excuted secondly. But I want that the slot ItemSelect
> be excuted firstly.
> 
> How can I do?
> 
> Thanks a lot!
> 
> Sincerely yours,
> Yan
> 
> yanqzhi at gmail.com
> 2010-03-02
The order of the slots being called is random.
As it is never certain which slot will called first you have to maybe use a 
different approach:
only connect only the slot itemSelect
>From inside the itenSelect slot do whatever you need to do. You may even 
define an own SIGNAL, connect it to the updateCheckState()  and emit that 
SIGNAL from inside the itemSelect slot.

Hope this helps

Eckhard