access selected value of QcomboBox problem

isan

I set a QcomboBox in gui widget and ,I add item

for(int i = 1; i < 31; i++)
        {
            ui->combo->addItem(QString::number(i));
        }

and in QComboBox slot I want to get selected value by

int index =ui->combo->itemData( ui->combo->currentText());

but have error :316: error: no matching function for call to 'QComboBox::itemData(QString)'
how can get slected value??

SGaist

Hi,

You should use currentIndex not currentText. itemData expects an int.

isan

addItem get Qstring ,

void QComboBox::addItem(const QString & text, const QVariant & userData = QVariant())

and when i use current index instead currentText return 0
so how can I set 1 to 31 number to comboBox and get selected value correctly??

yuvaram

Hi,
By using below code you can get seleted value in Qstring format.
Widget::Widget(QWidget *parent)
: QWidget(parent)
{
cbox = new QComboBox;
glayout = new QGridLayout(this);
glayout->addWidget(cbox);
QStringList list;
for(int i=0;i<31;i++){
list.append(QString::number(i));
}
cbox->addItems(list);
connect(cbox,SIGNAL(currentTextChanged(QString)),this,SLOT(SLTcurrentText(QString)));
}

void Widget:: SLTcurrentText(QString str){
qDebug()<<"CurrentText ::"<<str<<endl;
}

isan

tnx it's work