Using QButtonGroup in Designer - Ways to set ID?

**ChrisW67** · 30th April 2013, 05:27

Each button is a QObject and has an objectName(), and Designer sets the objectName() to match the name you see on the Object Inspector panel. You can iterate over QPushButton children of the form (or some child widget containing the buttons) where the name matches a pattern, extract the numeric part and use that as the ID. Something like:

Qt Code:

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ui->setupUi(this);
 
const QRegExp re("aux1_button(\\d+)");
foreach(QPushButton *button, findChildren<QPushButton*>(re)) {
  (void) re.indexIn(button->objectName());  // we know it matches, but we need the captured text
  const int id = re.cap(1).toInt();
  ui->buttonGroup->setId(button, id); // assuming the button is already in the button group
}

ui->setupUi(this);

const QRegExp re("aux1_button(\\d+)");
foreach(QPushButton *button, findChildren<QPushButton*>(re)) {
  (void) re.indexIn(button->objectName());  // we know it matches, but we need the captured text
  const int id = re.cap(1).toInt();
  ui->buttonGroup->setId(button, id); // assuming the button is already in the button group
}

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