How do I get my code to return all of the selected checkboxes at once and not one at a time? Google is of zero help to me at this point.

voncloft

I have tried my best to remedy with this. Selecteditems does not work it Qt just complains about a const error. I have posted my code below, can anyone help me. I just want to click a button and have it show what was selected. Not one at a time but all at once. I figure doing a
string+=value "could" work but if I disable a checkbox then that value would still be there.

code_text
#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    int c;
       QDirIterator dirIt("/usr/ports",QDirIterator::Subdirectories);
       while (dirIt.hasNext()) {
       dirIt.next();
       if(dirIt.fileName()==".." || dirIt.fileName()==".")
       {

       }
       else
       {
       if (QFileInfo(dirIt.filePath()).isFile())
       {
       }
       else
       {
                       // c+=1;
                           QListWidgetItem *values = new QListWidgetItem;
                           values->setText(dirIt.fileName());
                            values->setCheckState(Qt::Unchecked);
                          ui->listWidget->addItem(values);
                          //ui->listWidget->setItemWidget(values,new QCheckBox("zstd"));

           }

       }

}
       ui->listWidget->sortItems(Qt::AscendingOrder);
}
MainWindow::~MainWindow()
{
    delete ui;

}


void MainWindow::on_pushButton_clicked()
{
    QMessageBox msgBox;
    int x;

QListWidgetItem *item = ui->listWidget->currentItem();

msgBox.setText(item->text());
msgBox.exec();
  

}

JonB

@voncloft said in How do I get my code to return all of the selected checkboxes at once and not one at a time? Google is of zero help to me at this point.:

Selecteditems does not work it Qt just complains about a const error.

Well that sounds like the right thing to have used. So show your attempted code + error message for that....

But selected does not mean the same as checked. I don't know if there is a better method for getting all QListWidgetItems which are checked in a QListWidget, but you can always iterate through them (QListWidget::item(int row)) all, calling isSelected() or checkState() and building you own list of those which are.

voncloft

code_text
void MainWindow::on_pushButton_clicked()
{
    QMessageBox msgbox;
    QListWidget *item = ui->listWidget;
    msgbox.setText(item->selectedItems());
    
}

errors:

/usr/include/qt5/QtCore/qstring.h:265: candidate constructor not viable: no known conversion from 'QList<QListWidgetItem *>' to 'QChar' for 1st argument

/usr/include/qt5/QtCore/qstring.h:273: candidate constructor not viable: no known conversion from 'QList<QListWidgetItem *>' to 'QString &&' for 1st argument

/usr/include/qt5/QtCore/qstring.h:830: candidate constructor not viable: no known conversion from 'QList<QListWidgetItem *>' to 'const char *' for 1st argument

/usr/include/qt5/QtCore/qstring.h:833: candidate constructor not viable: no known conversion from 'QList<QListWidgetItem *>' to 'const QByteArray &' for 1st argument

/usr/include/qt5/QtCore/qstring.h:950: candidate constructor not viable: no known conversion from 'QList<QListWidgetItem *>' to 'const QString::Null &' for 1st argument

/usr/include/qt5/QtCore/qstring.h:962: candidate constructor not viable: no known conversion from 'QList<QListWidgetItem *>' to 'QStringDataPtr' for 1st argument

/usr/include/qt5/QtCore/qstring.h:1062: candidate constructor not viable: no known conversion from 'QList<QListWidgetItem *>' to 'QLatin1String' for 1st argument

/usr/include/qt5/QtCore/qstring.h:1088: candidate constructor not viable: no known conversion from 'QList<QListWidgetItem *>' to 'const QString &' for 1st argument

SGaist

Hi,

As the error said, there's no direct conversion between a list of QListWidgetItem and QString. It's your job to build the string out of them and then apply it to your message box.

voncloft

Can you point me to somewhere on how to do that google is useless at this point.

mrjj

@voncloft
Hi
You just have to loop the list

    QString resultStr;
    for (const QListWidgetItem * item : ui->listWidget_2->selectedItems() ) {
        resultStr += item->text()+"\n";
    }
    QMessageBox::information(this,"title", resultStr);

Note if you only want check ones, add an if statement

QString resultStr;
    for (const QListWidgetItem * item : ui->listWidget_2->selectedItems() ) {
        if ( item->checkState() == Qt::CheckState::Checked)
          resultStr += item->text()+"\n";
    }

voncloft

@mrjj said in How do I get my code to return all of the selected checkboxes at once and not one at a time? Google is of zero help to me at this point.:

QString resultStr;
for (const QListWidgetItem * item : ui->listWidget_2->selectedItems() ) {
if ( item->checkState() == Qt::CheckState::Checked)
resultStr += item->text()+"\n";
}

Doesn't work on push button just returns what is selected and checked.

voncloft

got it to work with the outline below

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    QDirIterator dirIt("/usr/ports",QDirIterator::Subdirectories);
    while (dirIt.hasNext()) {
    dirIt.next();
    if(dirIt.fileName()==".." || dirIt.fileName()==".")
    {

    }
    else
    {
    if (QFileInfo(dirIt.filePath()).isFile())
    {
    }
    else
    {
                    // c+=1;
                        QListWidgetItem *values = new QListWidgetItem;
                        values->setText(dirIt.fileName());
                         values->setCheckState(Qt::Unchecked);
                       ui->listWidget->addItem(values);
                       //ui->listWidget->setItemWidget(values,new QCheckBox("zstd"));

        }

    }

}
    ui->listWidget->sortItems(Qt::AscendingOrder);
}

MainWindow::~MainWindow()
{
    delete ui;
}

QString test;
void MainWindow::on_listWidget_itemClicked(QListWidgetItem *item)
{

    QMessageBox msgbox;

    if(item->checkState()==Qt::Checked)
    {
        test+=item->text()+" ";
    }
    else
    {
        test.remove(item->text());
    }
   // msgbox.setText(test);
   // msgbox.exec();



}

void MainWindow::on_pushButton_clicked()
{
    QMessageBox msgbox;


        msgbox.setText(test);
        msgbox.exec();
    }

Pablo J. Rogina

@voncloft said in How do I get my code to return all of the selected checkboxes at once and not one at a time? Google is of zero help to me at this point.:

got it to work

great, so please don't forget to mark your post as solved!