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PyQt5 – Adding action to the ComboBox

  • Last Updated : 22 Apr, 2020

In this article we will see how we can add action to the combo box. Action is basically a method called by the combo box when it gets changes these changes can be new item get inserted by user or any item get selected by the user.

In order to do this we will use activated.connect method.

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Syntax : combo_box.activated.connect(self.do_something)



Argument : It takes method name which should get called as argument

Return : None

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"]
  
        # making it editable
        self.combo_box.setEditable(True)
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # adding action to combo box
        self.combo_box.activated.connect(self.do_something)
  
    # method called by combo box
    def do_something(self):
          
        # printing something
        print("Something Something")
  
# 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 select any item this get printed

Something Something
Something Something



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