Set QLineEdit to accept only numbers

Question

I have a QLineEdit where the user should input only numbers.

So is there a numbers-only setting for QLineEdit?

Answer 1

Why don't you use a QSpinBox for this purpose ? You can set the up/down buttons invisible with the following line of codes:

// ...
QSpinBox* spinBox = new QSpinBox( this );
spinBox->setButtonSymbols( QAbstractSpinBox::NoButtons ); // After this it looks just like a QLineEdit.
//...