How to add checkable QComboBox in a QTableWidget header

Piyush

Hi,

I want to add a dynamic checkable QComboBox in QTableWdiget header. The QTableWidget contains data which updates frequently on certain logic. So, the checkable combobox should show updated value in it. Can somebody please help?

VRonin

You'll have to reimplement QHeaderView and then call QTableWdiget::setVerticalHeader/QTableWdiget::setHorizontalHeader to apply it to the table

Piyush

I am bit new to PyQt. I tried implementing it in the following way. However, I cannot add QComboBox in the header. But we surely can add text and format background colour.

I guess implementing QHeaderView is mandatory, like you mentioned. Could you please share a code snippet of how I can achieve this?

import sys
from PyQt5 import QtGui, QtWidgets

class MyFrame(QtWidgets.QFrame):
    def __init__(self, parent=None,initials=None):
        QtWidgets.QFrame.__init__(self, parent)
        self.table = QtWidgets.QTableWidget(5,3,self)
        self.table.move(30,30)
        self.table.resize(400,300)
        self.combo_counterp = ['a', 'b', 'c', 'd']
        combobox_counterp = QtWidgets.QComboBox()
        
        for val in self.combo_counterp:
            combobox_counterp.addItem(val)
         
        item1 = QtWidgets.QTableWidgetItem(self.table.setCellWidget(-1,-1,combobox_counterp))
        item1.setBackground(QtGui.QColor(255, 0, 0))
        
        self.table.setHorizontalHeaderItem(0,item1)

        item2 = QtWidgets.QTableWidgetItem('green')
        item2.setBackground(QtGui.QColor(0, 255, 0))
        self.table.setHorizontalHeaderItem(1,item2)

if __name__ == '__main__':
    app = QtWidgets.QApplication.instance()
    if app is None:
        app = QtWidgets.QApplication(sys.argv)
    app.aboutToQuit.connect(app.deleteLater)
    app.setStyle(QtWidgets.QStyleFactory.create('Fusion')) # won't work on windows style.
    Frame = MyFrame(None)
    Frame.resize(500,400)
    Frame.show()
    app.exec_()