In this article we will see how we can add a action to the combo box who have check-able items. By default when we create a combo box its items are not check-able i.e we can select any one item at a time although we can create such combo box by editing the combo box class. Below is the representation of how check-able combo box look like.
In order to do this we have to make a new editable combo box class which inherits the combo box and adds a new feature of check able combo box. Below is the syntax of new class and have to add a method when combo box get checked.
# new check-able combo box class CheckableComboBox(QComboBox): # constructor def __init__(self, parent=None): super(CheckableComboBox, self).__init__(parent) self.view().pressed.connect(self.handleItemPressed) self.setModel(QStandardItemModel(self)) count = 0 # action called when item get checked def do_action(self): window.label.setText("Checked number : " +str(self.count)) # when any item get pressed def handleItemPressed(self, index): # getting the item item = self.model().itemFromIndex(index) # checking if item is checked if item.checkState() == Qt.Checked: # making it unchecked item.setCheckState(Qt.Unchecked) # if not checked else: # making the item checked item.setCheckState(Qt.Checked) self.count += 1 # call the action self.do_action()
Below is the implementation
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