dynamically enabled QGroupBox

fender

The problem is the following: there are > 50 QGroupbox, at the final stage of the program, some of them are blocked. There is also a button for resetting the result, according to which all QGroupbox goes into the state

ui-> gb1-> setEnabled (true);

How to transfer them into this state dynamically? Not to register for each

dheerendra

Atleast question is not very clear to me. Let me try. What is the meaning dynamically transferring them ? What do you mean register each ?

Do you want to call one function and state of each group box should be set ? Is this you would like to achieve ? Or is it something else ?

fender

@dheerendra
Now I prescribe for everyone

void MainWindow::on_act_new_triggered()
{
ui-> gb1-> setEnabled (true);
//-----
a lot of code
-----//
ui-> gb65-> setEnabled (true);
}

This lengthens the code. I want to make it shorter

Christian Ehrlicher

If these are all QGroupBoxes you can use QObject::findChildren<QGroupBox*>()

J.Hilk

because findchild can be a costly operation,why don't you combine @Christian-Ehrlicher 's code with a single SIGNAL in your startup process

something like this:

//.h
signals:
void enableAll(bool);

//cpp constructor

{
//after ui setup

  for(QGroupBox *box : ui->findChildren<QGroupBox *>() )
        connect(this, &myClass::enableAll, box, &QGroupBox::setEnabled);
}

//enable
emit enableAll(true);
//disable
emit enableAll(false);

dheerendra

as @J-Hilk & @Christian-Ehrlicher suggested, it is findChildren is the option to go.