qt - QComboBox - How to set hint text on combo box

Question

The application GUI I working requires a combo box for user to select item. When the application starts, the combo box will show a hint text something like "Please select" instead of showing the first item of the combo box. I cannot find any method for setting the hint text in http://doc.qt.io/qt-5/qcombobox.html#currentText-prop.

Thank in advance!

Answer 1

There is an elegant solution if the QComboBox is editable:

myQComboBox->lineEdit()->setPlaceHolderText("Please select");

QComboBoxes that are not editable do not have QLineEdits in them, so this would not work on those.