CODEWITHSUNDEEP
c++qtqstringqpushbutton
Michael Kuzhel
Michael Kuzhel

Reputation: 11

How i can change number that displaying on QPushButton?

I have a QPushButton, this button has a text on it, this text is a number. In a slot of another object i want to change number that displayed on button, but when i call 

MyButton->setText(QString("%1").arg(Number));

or

QString tmp;
tmp.setNum(Number);
MyButton->setText(tmp);

text on button dosen't changes. But when i call 

MyButton->setText("some random text");

it works fine. How i can change number that displaying on button?

Part of my code:

sortWindow::sortWindow(QWidget *parrent)
{
...
MyButton = new QPushButton;
QString tmp(QString("%1").arg(Number));
MyButton.setText(tmp);
...
}

and

void sortWindow::workOnSignal(int index)
{
...
if (something)
{
...
QString tmp;
tmp.setNum(Number);
MyButton->setText(tmp);
...
}

Upvotes: 1

Views: 528

Answers (1)

Hesam Qodsi
Hesam Qodsi

Reputation: 1585

Type of Number must be int. So it will work properly.

#include <QApplication>
#include <QPushButton>

int main(int argc,char **argv)
{
    QApplication app(argc,argv);

    QPushButton *pd = new QPushButton;
    pd->setText(QString("%1").arg(1234));
    pd->show();

    return app.exec();
}

Upvotes: 2

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