In this article we will see how we can set the background color to the combo box when it is in on state. By default combo box is of grey color although we can change its color. This background color only appear when combo box widget is in on state. On state of combo box is basically when the drop down menu is open.
In order to do this we have to change the style sheet code of the combo box, below is the style sheet code
QComboBox::on { background-color : lightgreen; }
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 )
# 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)
# adding background color to the combo box when it is in ON state
self .combo_box.setStyleSheet( "QComboBox::on"
"{"
"background-color: lightgreen;"
"}" )
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
|
Output :
When we open drop down menu