ResizeSection of horizontalHeader doesn't resize a section when setStyleSheet is set

George55978

I can't figure out what is wrong.
It seems like resizeSection of horizontalHeader in QTableview doesn't make any effect when some else setStyleSheet is set. Here is my code:

import sys
from PyQt6.QtSql import QSqlTableModel
from PyQt6.QtWidgets import (
                             QApplication,   
                             QMainWindow,
                             QVBoxLayout,
                             QWidget,
                             QTableView,
                           
                            )

from db import make_check_db_connection

class TestWindow(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        
        layuot = QVBoxLayout()

        self.model = QSqlTableModel(db=make_check_db_connection())
        self.model.setTable("Rests")
        
        self.table = QTableView()
        self.table.setModel(self.model)
        self.model.select()
               
        # self.setStyleSheet("QMainWindow {background-color: yellow;}")
        self.table.horizontalHeader().setStyleSheet("QHeaderView::section { background-color: green;}")
        
        self.table.horizontalHeader().resizeSection(1, 300)
        layuot.addWidget(self.table)
        widget = QWidget()
        widget.setLayout(layuot)
        self.setCentralWidget(widget)
        self.show()
app = QApplication(sys.argv)
window = TestWindow()
window.show()
app.exec()

img1

Img2
The results for commented and uncommented

self.setStyleSheet("QMainWindow {background-color: yellow;}")

are on Img1 and Img2 respectively.
So for uncommented case the width of 1st section remains unchanged.
Ideally I would like to set QSS at the TestWindow level for other widgets but it also breaks resizeSection.
I would appreciate any help.

Christian Ehrlicher

What Qt version do you use?

George55978

@Christian-Ehrlicher said in ResizeSection of horizontalHeader doesn't resize a section when setStyleSheet is set:

What Qt version do you use?

Name: PyQt6
Version: 6.6.1

Christian Ehrlicher

See https://bugreports.qt.io/browse/QTBUG-122109

George55978

@Christian-Ehrlicher
got it, thanks