Question

I am using a QSpinBox that can be used to input values from 0 to 33. The default value is zero. If I use the keyboard to enter numbers it keeps the leading zero, which is annoying.

Example: I want to enter 23 via the keyboard

I type “2” – the value of the spinbox changes to “02”

I type “3” – nothing happens – the spinbox is full

How do I prevent this behavior?

thanks,
A

Answer 1

Add a line of code in the valueChanged listener to remove a leading zero.

if (mySpinBox.value.length() > 1 && mySpinBox.value[0] == '0')
{
     mySpinBox.value = mySpinBox.value.remove(0, 1);
}