Disable and enable radiobuttons from another radiobutton in PyQt4 Python

Question

I have 3 radiobutton groups in forms of Yes or No. I want to disable the last 2 radiobutton groups if the first radiobutton is "No" and enable them when the first radiobutton is "Yes". I can make the enabled or disabled by default but toggling Yes/No from the first group doesn't change the result in the second and third group.

Here is a summary of my code:

self.yes_radioButtonGroup1 = QtGui.QRadioButton(self.centralwidget)      
self.yes_radioButtonGroup1.setObjectName(_fromUtf8("yes_radioButtonGroup1"))
self.no_radioButtonGroup1 = QtGui.QRadioButton(self.centralwidget)
self.no_radioButtonGroup1.setObjectName(_fromUtf8("no_radioButtonGroup1"))
self.radioButtonGroup1= QtGui.QButtonGroup(MainWindow)   
self.radioButtonGroup1.setObjectName(_fromUtf8("radioButtonGroup1"))
self.radioButtonGroup1.addButton(self.yes_radioButtonGroup1)
self.radioButtonGroup1.addButton(self.no_radioButtonGroup1)

self.yes_radioButtonGroup2 = QtGui.QRadioButton(self.centralwidget)      
self.yes_radioButtonGroup2.setObjectName(_fromUtf8("yes_radioButtonGroup2"))
self.no_radioButtonGroup2 = QtGui.QRadioButton(self.centralwidget)
self.no_radioButtonGroup2.setObjectName(_fromUtf8("no_radioButtonGroup2"))
self.radioButtonGroup2= QtGui.QButtonGroup(MainWindow)   
self.radioButtonGroup2.setObjectName(_fromUtf8("radioButtonGroup2"))
self.radioButtonGroup2.addButton(self.yes_radioButtonGroup1)
self.radioButtonGroup2.addButton(self.no_radioButtonGroup1)

self.yes_radioButtonGroup3 = QtGui.QRadioButton(self.centralwidget)      
self.yes_radioButtonGroup3.setObjectName(_fromUtf8("yes_radioButtonGroup3"))
self.no_radioButtonGroup3 = QtGui.QRadioButton(self.centralwidget)
self.no_radioButtonGroup3.setObjectName(_fromUtf8("no_radioButtonGroup3"))
self.radioButtonGroup3= QtGui.QButtonGroup(MainWindow)   
self.radioButtonGroup3.setObjectName(_fromUtf8("radioButtonGroup3"))
self.radioButtonGroup3.addButton(self.yes_radioButtonGroup3)
self.radioButtonGroup3.addButton(self.no_radioButtonGroup3)


if self.yes_radioButtonGroup1.isChecked() == True:
        self.yes_radioButtonGroup2.setEnabled(True)
        self.no_radioButtonGroup2.setEnabled(True)
        self.yes_radioButtonGroup3.setEnabled(True)
        self.no_radioButtonGroup3.setEnabled(True)

elif self.no_radioButtonGroup1.isChecked() == True:
        self.yes_radioButtonGroup2.setEnabled(False)
        self.no_radioButtonGroup2.setEnabled(False)
        self.yes_radioButtonGroup3.setEnabled(False)
        self.no_radioButtonGroup3.setEnabled(False)

I was wondering if anybody knows how to dynamically enable or disable the last two radiobutton group when values from the first radiobutton changes?

They are exclusive, at least one (either Yes or No) should be selected. each pair are in a different QButtonGroup — seyet, Apr 19 '18 at 20:44

score 1 · Accepted Answer · answered Apr 19 '18 at 20:53

Since the buttons are exclusive enough to monitor one of them, so the appropriate signal is toggled() that sends the information if the button is checked or not.

    self.yes_radioButtonGroup1 = QtGui.QRadioButton(self.centralwidget)      
    self.yes_radioButtonGroup1.setObjectName(_fromUtf8("yes_radioButtonGroup1"))
    self.no_radioButtonGroup1 = QtGui.QRadioButton(self.centralwidget)
    self.no_radioButtonGroup1.setObjectName(_fromUtf8("no_radioButtonGroup1"))
    self.radioButtonGroup1= QtGui.QButtonGroup(MainWindow)   
    self.radioButtonGroup1.setObjectName(_fromUtf8("radioButtonGroup1"))
    self.radioButtonGroup1.addButton(self.yes_radioButtonGroup1)
    self.radioButtonGroup1.addButton(self.no_radioButtonGroup1)

    self.yes_radioButtonGroup2 = QtGui.QRadioButton(self.centralwidget)      
    self.yes_radioButtonGroup2.setObjectName(_fromUtf8("yes_radioButtonGroup2"))
    self.no_radioButtonGroup2 = QtGui.QRadioButton(self.centralwidget)
    self.no_radioButtonGroup2.setObjectName(_fromUtf8("no_radioButtonGroup2"))
    self.radioButtonGroup2= QtGui.QButtonGroup(MainWindow)   
    self.radioButtonGroup2.setObjectName(_fromUtf8("radioButtonGroup2"))
    self.radioButtonGroup2.addButton(self.yes_radioButtonGroup1)
    self.radioButtonGroup2.addButton(self.no_radioButtonGroup1)

    self.yes_radioButtonGroup3 = QtGui.QRadioButton(self.centralwidget)      
    self.yes_radioButtonGroup3.setObjectName(_fromUtf8("yes_radioButtonGroup3"))
    self.no_radioButtonGroup3 = QtGui.QRadioButton(self.centralwidget)
    self.no_radioButtonGroup3.setObjectName(_fromUtf8("no_radioButtonGroup3"))
    self.radioButtonGroup3= QtGui.QButtonGroup(MainWindow)   
    self.radioButtonGroup3.setObjectName(_fromUtf8("radioButtonGroup3"))
    self.radioButtonGroup3.addButton(self.yes_radioButtonGroup3)
    self.radioButtonGroup3.addButton(self.no_radioButtonGroup3)

    self.yes_radioButtonGroup1.toggled(self.on_yes_checked)
    # set initial state
    self.on_yes_checked(self.yes_radioButtonGroup1.isChecked())

def on_yes_checked(self, checked):
    self.yes_radioButtonGroup2.setEnabled(checked)
    self.no_radioButtonGroup2.setEnabled(checked)
    self.yes_radioButtonGroup3.setEnabled(checked)
    self.no_radioButtonGroup3.setEnabled(checked)

`QButtonGroup()` has no `setEnabled()` method in Pyside2. How can I enable/disable all buttons in a group, other than iterating over all buttons. — NZD, Jan 31 '19 at 00:41

Disable and enable radiobuttons from another radiobutton in PyQt4 Python

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