How to find an object by name in pyqt?

Question

I have a list of dictionaries:

globalParams = [{'attr':'enabled','ctrl':'checkBoxEnabled','type':'checkBox'},
                {'attr':'colorMode','ctrl':'comboBoxColorMode','type':'comboBox'}]

'ctrl' - name of the control in the Qt window.

typically, the code is as follows:

self.checkBoxEnabled.checkState()

but checkBoxEnabled is an object. and i have only a string name 'checkBoxEnabled' and cannot use it...

how to find an object by name in pyqt? something like? self.GetObjectByName('checkBoxEnabled').checkState()

Answer 1

You can use QObject::findChild method. In pyqt it should be written like this:

checkbox = self.findChild(QtGui.QCheckBox, "checkBoxEnabled")

self should be a parent widget of the checkbox.

Answer 2

To find all the QCheckBox items in your UI you can run a loop through all the children of the widget like as below:

from PyQt5.QtWidgets import QCheckBox
from PyQt5.QtCore import QObject

class Mainwindow(QMainWindow):
    def __init__(self):
        # super().__init__()
        self.checkbox = QCheckBox(self)
        self.checkbox_1 = QCheckBox(self)

        for checkstate in self.findChildren(QCheckBox):
            print(f'get check state:{checkstate.checkState()}')