Qt How to disable QComboBox mouse scrolling?

Question

I have a built-in QComboBox in a QTableView. To show them by default, I made these indexes a "permanent editor." But now, every time I scroll the mouse, they break my current table selection.

So basically, how can I disable QComboBox mouse scrolling?

Answer 1

The same thing can happen to you in a QSpinBox or QDoubleSpinBox . On the QSpinBox inside QScrollArea: how to prevent the Spin Box from stealing focus when scrolling? you can find a really good and well-explained solution to the problem with code snippets.

Answer 2

You can disable mouse wheel scrolling by setting eventFilter to your QComboBox and ignore events generated by the mouse wheel, or subclass QComboBox and redefine wheelEvent to do nothing.

Answer 3

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

Here is my overridden 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 can be called as follows:

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

Basically the answer is emkey08 in the link Ralph Tandecki talked about , but this time in python.