PyQt5 – Accessing role of item in ComboBox

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In this article we will see how we can access the item role in combo box. By default when we create a combo box and add items to it no role is set to the items. In order to set the role we use setItemData method and in order to access the role we use itemData method.

Syntax : combo_box.temData(index)

Argument : It takes integer as argument

Return : It will return string i.e role

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)
 
        # setting roles to the items
        self.combo_box.setItemData(0, "First role")
        self.combo_box.setItemData(1, "Second role")
        self.combo_box.setItemData(2, "Third role")
        self.combo_box.setItemData(3, "Fourth role")
 
        # getting role
        role = self.combo_box.itemData(0)
 
        # creating label to print the role
        label = QLabel("Geek role : " + role, self)
 
        # setting geometry
        label.setGeometry(200, 200, 150, 30)
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())