PyQt5 – Getting the current index of selected item in ComboBox

In this article we will see how we can get the current index of the selected item the combo box. In order to do this we will use the currentIndex method.

Syntax : combo_box.currentIndex() 

Argument : It takes no argument 

Return : It return integer i.e index of selected item

Steps for implementation – 1. Create a combo box 2. Add items to combo box 3. Create push button 4. Add action to the push button 5. Create label to show count 5. Inside the action get the index of current item selected in combo box with the help of currentIndex method and store it in variable 6. Show the index in label with the help of setText method. Below is the implementation – 

Python3

# 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, 120, 30)

        # geek list
        geek_list = ["Geek", "Geeky Geek", "Legend Geek", "Ultra Legend Geek"]

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

        # creating push button
        button = QPushButton("Show content ", self)

        print(self.combo_box.count())

        # adding action to button
        button.pressed.connect(self.find)

        # creating label
        self.label = QLabel(self)

        # setting geometry of the label
        self.label.setGeometry(200, 200, 200, 30)

    def find(self):

        # finding the current item index  in combo box
        index = self.combo_box.currentIndex()

        # showing content on the screen through label
        self.label.setText("Index : " + str(index))

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

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

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

Output :