Values of dynamically created QLineEdit

Tirolel

Hi everyone.

I want to get text values from QLineEdit which it have been added dynamically.

I have a loop for adding these widgets to tempLayout.

tempLayout->addWidget(new QLabel(j.key()));
tempLayout->addWidget(new QLineEdit(j.value()));

So how I can access the values that I want from the QLineEdit? I have about 4-5 labels and 6-7 of Qlineedits.

I have tried this but it crashes when I access it.

int children = tempLayout->count();
if(children > 0)
{
    qDebug() << "Children count = "<< children;
    QString str = tr("");
    for(int i = 0; i < children; i++)
    {
        QLayoutItem* pLine = tempLayout->itemAt(i);
        pLineEdit = (QLineEdit*)pLine->widget();
       qDebug() << "Children of templayout" << pLineEdit->text();
    }
    qDebug() << "Values " << tempLayout->count();
}
else
{
    qDebug() << "No children found";
}

mrjj

Have you tried with

QList<QLineEdit*> widgets = tempLayoutParent->findChildren<QLineEdit*>();
http://doc.qt.io/qt-5/qobject.html#findChildren

VRonin

another way is set the objectName() of each QLineEdit and retrieve them by name

kenchan

@Tirolel
If you want t do it that way you shouldn't you cast the widget to find out what type it is before you actually use it?

if(qobject_cast<QLineEdit*>(pLine->widget()) != 0)
...

Test for which type it is then use the correct type cast to use the actual member functions...