Checkable Combobox: read checked or unchecked items

[Piyush]

Hi

I have created checkable/multi-select combobox using the below class:

class CheckableComboBox(QComboBox):
    def __init__(self, parent=None):
        super(CheckableComboBox, self).__init__(parent)
        self.view().pressed.connect(self.handleItemPressed)
        self._changed = False

    def handleItemPressed(self, index):
        item = self.model().itemFromIndex(index)
        if item.checkState() == Qt.Checked:
            item.setCheckState(Qt.Unchecked)
        else:
            item.setCheckState(Qt.Checked)
        self._changed = True

    def hidePopup(self):
        if not self._changed:
            super(CheckableComboBox, self).hidePopup()
        self._changed = False

    def itemChecked(self, index):
        item = self.model().item(index, self.modelColumn())
        return item.checkState() == Qt.Checked

    def setItemChecked(self, index, checked=True):
        item = self.model().item(index, self.modelColumn())
        if checked:
            item.setCheckState(Qt.Checked)
        else:
            item.setCheckState(Qt.Unchecked)

I created the combobox on the go using the following and added it into the GUI (.ui file) created using Qt Designer:

class app(QMainWindow):
    
    def __init__(self):
        super(app, self).__init__()
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
        self.combo_counterp = ['', 'ABC', 'DEF', 'GHI']
        self.file_path = 'ABCD.xlsx' # Enter data file here
        self.countp = 0
        self.out_counterp_val = ['' for x in range(len(self.combo_counterp)-1)]
        
        self.ui.out_counterp = CheckableComboBox(self)
        for index in range(len(self.combo_counterp)):
            self.ui.out_counterp.addItem(self.combo_counterp[index])
            self.ui.out_counterp.setItemChecked(index, False)
        self.ui.formLayout_2.addRow(self.ui.out_counter_lbl, self.ui.out_counterp)

Now, I want to check the status of number of items (and value of those items) checked/unchecked. However, I cannot call them using the widget name, i.e., self.ui.out_counterp (shows error as app does not have any attribute self.ui.out_counterp). Also, cannot use checkState() {attribute error again}with the ChecableComboBox widget. Seems like I am missing something here. Please help.

[jsulm]

@Piyush said in Checkable Combobox: read checked or unchecked items:

self.ui.out_counterp

Why dont you store it in another variable like

self.out_counterp = CheckableComboBox(self)

?
There is no need to store it in self.ui

[Piyush]

Thanks @jsulm