how to check the status of checkboxes in a groupbox

[fatemehkarimi]

I have a number of checkboxes inside a QGroupBox.
It looks something like this

--GroupBox----------------
| 0 - checkbox1 |
| 0 - checkbox2 |
| 0 - checkbox3 |
| 0 - checkbox4 |
| 0 - checkbox5 | | ok |

check boxes are added dynamically to group box, so the number of them is unknown at compile time.
each checkbox presents a student name and is checked if that student is present in the class.

when ok is pressed, I must check which checkboxes are checked. how can I do this???

[VRonin]

see also https://forum.qt.io/topic/79617/accessing-members-in-groupbox

1. you are doing it wrong. You should use a checkable QListWidget (or, even better, QListView+ QStandardItemModel)
2. you can use findChildren to do it in your current state:

const auto checkBoxList = groupBox->findChildren<QCheckBox*>();
for(auto&& singleBox : checkBoxList)
qDebug() << singleBox->text() << singleBox->isChecked();

[fatemehkarimi]

This post is deleted!

[fatemehkarimi]

@VRonin sorry but what do you mean by checkable QListWidget?? is it QList Widget in ui???

[fatemehkarimi]

@VRonin

the compiler says :

E:\Fatemeh\Coding\Practice\test_widgetApp\mainwindow.cpp:48: error:  invalid use of incomplete type 'class QDebug'
     qDebug() << singleBox->text() << singleBox->isChecked();
            ^

what should I do????

[VRonin]

@fatemehkarimi said in how to check the status of checkboxes in a groupbox:

invalid use of incomplete type 'class QDebug'

that means you forgot #include <QDebug>

what do you mean by checkable QListWidget

http://doc.qt.io/qt-5/qlistwidget.html

and instead of:

QGroupBox *students = new QGroupBox;
 students->setTitle("List Of Students");
 QVBoxLayout * vlayout = new QVBoxLayout;

for (int i = 0; i < 25; ++i) {
        QCheckBox * newStudent = new QCheckBox;
        newStudent->setText("fatemeh karimi");
        vlayout->addWidget(newStudent);
    }

use

QListWidget *students = new QListWidget;

for (int i = 0; i < 25; ++i) {
        QListWidgetItem* newStudent = new QListWidgetItem("fatemeh karimi",students);
        newStudent ->setFlags(Qt::ItemIsUserCheckable | newStudent->flags());
    }

and then you can easily iterate through the items of the QListWidget

[fatemehkarimi]

@VRonin
thank you extremely much.