Disregard Checkbox changes when Cancel is clicked.

[HashTagJF]

Can someone help me with this? I want to disregard the changes in the checkbox when cancel button is clicked. I used the following codes but it didn't work.

void MainWindow::on_Cancel_clicked()
{

if (ui->checkBox->isChecked()){
 ui->checkBox->setChecked(false);
}

else{
 ui->checkBox->setChecked(true);
}
}

[Moved to General and Desktop ~kshegunov]

[SGaist]

Hi,

What exactly doesn't work ?

[HashTagJF]

The Cancel button. When I unchecked the checkbox then click cancel the checkbox should still be checked since there's no changes that has been made but when I re open it, it remains unchecked.

[SGaist]

Do you mean when you start your application again ?

[ambershark]

That code is flawed. What if the user did not change the checkbox before hitting cancel? You are forcing a toggle basically when it's potential it wasn't clicked.

You should track the original state in a variable until either ok or cancel is pressed. If cancel, return it to it's original state, if ok, honor the change.

And finally, it does sound that you are trying to have a checkbox value persist after the app closes and reopens. If this is the case you need to save it's value somewhere. Check into QSettings for an easy way to handle serialization of options.

[HashTagJF]

@SGaist yes when I start my application again..

[HashTagJF]

my project is like this..

[SGaist]

@ambershark still has a point. Changing something that hasn't been modified is just plain wrong.

The use QSetting to store and load the state of the widget.