Qt How to disable mouse scrolling of QComboBox?

Question

I have some embedded QComboBox in a QTableView. To make them show by default I made those indexes "persistent editor". But now every time I do a mouse scroll on top them they break my current table selection.

So basically how can I disable mouse scrolling of QComboBox?

Answer 1

As I found this question, when I tried to figure out the solution to (basically) the same issue: In my case I wanted to have a QComboBox in a QScrollArea in pyside (python QT lib).

Here my redefined QComboBox class:

#this combo box scrolls only if opend before.
#if the mouse is over the combobox and the mousewheel is turned,
# the mousewheel event of the scrollWidget is triggered
class MyQComboBox(QtGui.QComboBox):
    def __init__(self, scrollWidget=None, *args, **kwargs):
        super(MyQComboBox, self).__init__(*args, **kwargs)  
        self.scrollWidget=scrollWidget
        self.setFocusPolicy(QtCore.Qt.StrongFocus)

    def wheelEvent(self, *args, **kwargs):
        if self.hasFocus():
            return QtGui.QComboBox.wheelEvent(self, *args, **kwargs)
        else:
            return self.scrollWidget.wheelEvent(*args, **kwargs)

which is callable in this way:

self.scrollArea = QtGui.QScrollArea(self)
self.frmScroll = QtGui.QFrame(self.scrollArea)
cmbOption = MyQComboBox(self.frmScroll)

It is basically emkey08's answer in the link Ralph Tandetzky pointed out, but this time in python.