PyQt5 – Set background color to lineedit of non editable ComboBox

In this article we will see how we can set the background color to the line edit part of non editable combo box, line edit part of the combo box is in which text is shown and edit.

Note : When we add line edit object to the combo box, it will make the combo box editable therefore there is a need to make line edit object non editable

In order to add background color to the line edit part of the combo box, do the following –

1. Create a combo box
2. Create a line edit widget
3. Change background color of the line edit widget
4. Make line edit object non editable
5. Add line edit widget to the combo box

Syntax :

# creating line edit widget
line_edit = QLineEdit()
        
# setting background color to the line edit widget
line_edit.setStyleSheet("QLineEdit"
                        "{"
                        "background : lightblue;"
                        "}")

# making line edit non editable
line_edit.setReadOnly(True)
               
# adding line edit widget to combo box
self.combo_box.setLineEdit(line_edit)

Below is the implementation

# 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 combo box widget
        self.combo_box = QComboBox(self)

        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 150, 30)

        # making combo box editable
        self.combo_box.setEditable(True)

        # 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)

        # creating line edit widget
        line_edit = QLineEdit()

        # setting background color to the line edit widget
        line_edit.setStyleSheet("QLineEdit"
                                "{"
                                "background : lightblue;"
                                "}")

        # making line edit non editable
        line_edit.setReadOnly(True)

        # adding line edit widget to combo box
        self.combo_box.setLineEdit(line_edit)


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

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

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

Output :