How to set selected item of a QListWidget?

[aamer4yu]

so after refreshing I want it to select the first item, while it is by default selecting none.

It wont select itself since you deleted all the items. Aftter filling call this -

listWidget->item(0)->setSelected(true);

listWidget->item(0)->setSelected(true);

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and you are done This is assuming you want to seleced first item, as you said. For other row, you select some other row.

QModelIndex modelIndex = list->rootIndex();

Am afraid in case of listwidget this might not be valid. Also when you talk about QListWidget, you talk in terms of rows and QListWidgetItem.
You are not concerned about the internal behaviour. QListWidget manages its own model internally, and you dont have access to it.

[talk2amulya]

yes, u r right, u r not concerned about those values when using QListWidget..just because the guy is new to it..i was explaining in terms of mvc itself..i wrote there are number of ways to do it .. plus yes rootIndex() might not be valid..i just wanted to show the use of QModelIndex..and how one should get model indexes

[aamer4yu]

just because the guy is new to it..i was explaining in terms of mvc itself..

Were u trying to scare him lolz...

[Lawand]

well, I tried this one:

QListWidget *list = new QListWidget();
list->setSelectionMode(QAbstractItemView::SingleSelection);
 
QModelIndex modelIndex = list->rootIndex(); // u have to find the model index of the first item here
list->setCurrentIndex(modelIndex);

QListWidget *list = new QListWidget();
list->setSelectionMode(QAbstractItemView::SingleSelection);

QModelIndex modelIndex = list->rootIndex(); // u have to find the model index of the first item here
list->setCurrentIndex(modelIndex);

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but it didn't work, so I am gonna stick with this one for now:

listWidget->item(0)->setSelected(true);

listWidget->item(0)->setSelected(true);

To copy to clipboard, switch view to plain text mode 

and I'll try to read the model-view-introduction sometimes later...


Thanks for your help.

[talk2amulya]

I don't think he could have gotten scared of 4 lines of code wrote it just to motivate him to read abt mvc..thats not wrong i guess..and it's not working cuz of the model index..I guess I should hv saved myself all the trouble & wrote ur one line example..but that's how it is