How to create lineEdits as an array?

I am a newby at Qt
I have been searching extensively in the large amount of Qt-documentation and got lost.
In Qt Creator lineEdits are named as lineEdit, lineEdit_2 etc
Can anyone tell me if it is possible to create QLineEdit widgets with names as lineEdit[i] which can be called by a for-loop.
ui->lineEdit[i]-> setText(something[i]);
(Reference to) a short simple example would be very welcome.

Yes but not in Qt Creator. You must do this programmatically, more or less like this :

Code:

---

QList<QLineEdit*> qle_list;
for( int i=0; i < 100; i++ )
    qle_list.append(new QLineEdit());

---

Thank you Lesiok, I am going to try.
But when not using Creator, in which file should it be placed?
I am up to now only familiar with Creator

In attachment simple example.

Quote:

---

Originally Posted by Lesiok

Yes but not in Qt Creator.

---

You probably meant "not in Qt Designer"

Cheers,
_

Quote:

---

Originally Posted by anda_skoa

You probably meant "not in Qt Designer"

Cheers,
_

---

Of course ;)

Thank you for your help, Lesiok.
I am going to try the codes from superdialog.zip

When I tried to implement the code you gave before into a widget.cpp indeed qle_list was constructed as a QList of type QLineEdit, but the elements were undefined and I could not find how to get the lineEdits on a window.
It is strange that I could nowhere find a straightforward solution. Until now I just use a large series of code lines like:
QLineEdit * text[50];
text[1] = ui->lineEdit_1
text[2] = ui->lineEdit_2
......
text[50] =ui->lineEdit_50

I can imagine that it can not be done easier with a nice system as Qt.
But maybe that is why I am still a newbe

I guess you are trying to do this.

Code:

---

#include <QApplication>
#include <QDialog>
#include <QLineEdit>
#include <QVBoxLayout>
#include <QList>
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
 
    QDialog w;
    QVBoxLayout * vLayout = new QVBoxLayout(&w);
    QList<QLineEdit *> qle_list;
 
    for(int i = 0; i < 10; ++i)
    {
        qle_list.append(new QLineEdit());
        qle_list.at(i)->setObjectName(QString("lineEdit%1").arg(i)); // It's easier to recognize an object by name
        vLayout->addWidget(qle_list.at(i));
    }
    w.setLayout(vLayout);
    w.show();
 
    return a.exec();
}

---

For example, you can get the object name by

Code:

---

for-loop: qle_list.at(i)->objectName();

---

Quote:

---

Originally Posted by Wolletje

Thank you for your help, Lesiok.
I am going to try the codes from superdialog.zip

When I tried to implement the code you gave before into a widget.cpp indeed qle_list was constructed as a QList of type QLineEdit, but the elements were undefined and I could not find how to get the lineEdits on a window.
It is strange that I could nowhere find a straightforward solution. Until now I just use a large series of code lines like:
QLineEdit * text[50];
text[1] = ui->lineEdit_1
text[2] = ui->lineEdit_2
......
text[50] =ui->lineEdit_50

I can imagine that it can not be done easier with a nice system as Qt.
But maybe that is why I am still a newbe

---

I do not think you understand my example. QLineEdit objects are created in the code and not in the UI file.

If you want to create the buttons in Qt Designer, you can still retrieve them into a list using QObject::findChildren().

Cheers,
_

Quote:

---

Originally Posted by Wolletje

I am a newby at Qt
I have been searching extensively in the large amount of Qt-documentation and got lost.
In Qt Creator lineEdits are named as lineEdit, lineEdit_2 etc
Can anyone tell me if it is possible to create QLineEdit widgets with names as lineEdit[i] which can be called by a for-loop.
ui->lineEdit[i]-> setText(something[i]);
(Reference to) a short simple example would be very welcome.

---

You can use this code: (Qt example in QSignalMapper):

Code:

---

QGridLayout *gridLayout = new QGridLayout;
    for (int i = 0; i < texts.size(); ++i) {
        QPushButton *button = new QPushButton(texts[i]);
        connect(button, SIGNAL(clicked()), signalMapper, SLOT(map()));
        signalMapper->setMapping(button, texts[i]);
        gridLayout->addWidget(button, i / 3, i % 3);
    }

---