Okay while I found out what it is you need to reference I did not find how to reference it but I am sure that if you dig hard enough (and sometimes you need an industrial sized backhoe) you can find the how -- but the object is called the QTableCornerButton (aka its a button not a header element). I tried the obvious which is shown below but that had no effect. Other than that I cleaned up your code some (but it still is not very python-qt5-ish) and explained why I changed what I did. I hope these help you move in a positive direction and help you track down that elusive reference to the QTableCornerButton
from PySide2.QtGui import QFont
from PySide2.QtWidgets import QApplication, QDialog, QFrame, QTableWidget, QGridLayout
# No longer needed
# import sys
class MainWindow(QDialog):
def __init__(self):
# Do not use Super( ) unless you fully understand the 3 issues
# that need to be handled within your code to implement it
# correctly -- further unless you need it for that rather rare
# case it was designed for you are creating more issues for no
# reason since you do not have the rare issue
# super(MainWindow, self).__init__()
QDialog.__init__(self)
# Do you really need a Class Font as it is only used once
# self.ClassFont = QFont('Calibri', 10)
self.resize(600, 300)
# -------
self.table = QTableWidget()
# -------
# Do not create a function for 2 lines of non-repeated code
# table_box = self.create_table_box()
table_box = QGridLayout()
table_box.addWidget(self.table, 0, 0)
# -------
self.table_group = QFrame()
self.table_group.setLayout(table_box)
# -------
# You really do not need a Grid Layout here a QVBoxLayout and/or QHBoxLayout
# would have worked just as well with less overhead
self.layout = QGridLayout()
# You are only using 1 Column and 1 Row of the Grid Layout so why are you
# setting the Spacing this does not affect your Table Widget's Columns
self.layout.setSpacing(5)
self.layout.addWidget(self.table_group, 0, 0)
# -------
self.setLayout(self.layout)
# -------
self.construct_table()
def construct_table(self):
column_size = [100, 260, 150]
column_labels = ["A", "B", "C"]
rowLabels = []
for i in range(50):
rowLabels.append(str(i + 1))
self.table.setRowCount(10)
self.table.setColumnCount(len(column_size))
self.table.setFixedWidth(sum(column_size) + 34)
self.table.setFixedHeight(157)
self.table.verticalHeader().setMinimumSectionSize(23)
self.table.verticalHeader().setMaximumSectionSize(23)
self.table.verticalHeader().setDefaultSectionSize(23)
self.table.setHorizontalHeaderLabels(column_labels)
self.table.setVerticalHeaderLabels(rowLabels)
self.table.verticalHeader().setVisible(True)
# If you do not need a Class Level variable do not create it
# self.table.setFont(self.ClassFont)
self.table.setFont(QFont('Calibri', 10))
cnt = 0
for column in column_size:
self.table.setColumnWidth(cnt, column)
cnt += 1
self.table.setStyleSheet("QHeaderView::section {background-color: rgb(100, 100, 100); color: rgb(200, 200, 200);}")
# Again while this does not seem to do anything it does not crash either so maybe its a peek into what you need to do
self.table.setStyleSheet("QTableCornerButton::section {background-color: rgb(100, 100, 100); color: rgb(200, 200, 200);}")
if __name__ == '__main__':
# First if you are not using Command Line arguments do not reference them
# and if you do use Command Line arguments use the argparser library instead
# it handles them much more cleanly and intuitively
# app = QApplication(sys.argv)
MainEvntHndlr = QApplication([])
# When setting the Application Style be sure to reference the Application
# object you created as well use the method correctly
# QApplication.setStyle(QStyleFactory.create('Fusion'))
MainEvntHndlr.setStyle('Fusion')
MainApp = MainWindow()
MainApp.show()
# This is how to do this in Qt5 your version was Qt4
# sys.exit(app.exec_())
MainEvntHndlr.exec()