PyQt5 ComboBox – Setting border style to down arrow when pressed

In this article we will see how we can set border style to the down arrow when it get pressed. Basically, when we set border to the down arrow it is of plain simple border although we can change its style. In order to do so we have to change the style sheet associated with the combo box below is the style sheet code

QComboBox::down-arrow::pressed
{
border : 4px black;
border-style : dotted;
}

Below is the implementation

Python3 1==

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys


class Window(QMainWindow):

    def __init__(self):
        super().__init__()

        # setting title
        self.setWindowTitle("Python ")

        # setting geometry
        self.setGeometry(100, 100, 600, 400)

        # calling method
        self.UiComponents()

        # showing all the widgets
        self.show()

    # method for widgets
    def UiComponents(self):
        # creating a check-able combo box object
        self.combo_box = QComboBox(self)

        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 150, 80)

        # geek list
        geek_list = ["Sayian", "Super Sayian", "Super Sayian 2", "Super Sayian B"]

        # adding list of items to combo box
        self.combo_box.addItems(geek_list)

        # setting style sheet
        # adding border to down arrow
        # setting border style to it when it get pressed
        self.combo_box.setStyleSheet("QComboBox::down-arrow"
                                     "{"
                                     "border : 2px solid black;"
                                     "}"
                                     "QComboBox::down-arrow:pressed"
                                     "{"
                                     "border-style : dotted;"
                                     "}")


# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())

Output :

PyQt5 ComboBox – Setting border style to down arrow when pressed

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