In this article we will see how we can get the role of selected item in the combo box. Role is basically additional data provided with the item, in order get the role of selected item we use currentData method.
Syntax : combo_box.currentData()
Argument : It takes no argument
Return : It return string i.e role of selected item
Below is the implementation –
Python3
# importing librariesfrom PyQt5.QtWidgets import *from PyQt5 import QtCore, QtGuifrom PyQt5.QtGui import *from PyQt5.QtCore import *import sysclass 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") # create push button button = QPushButton("Show", self) # adding action to the button button.pressed.connect(self.show_role) # creating label self.label = QLabel(self) # setting geometry of the label self.label.setGeometry(200, 200, 200, 30) def show_role(self): # getting the role of selected item role = self.combo_box.currentData() # showing the role throw label self.label.setText(role)# create pyqt5 appApp = QApplication(sys.argv)# create the instance of our Windowwindow = Window()# start the appsys.exit(App.exec()) |
Output :
