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PyQt5 – How to delete all the items in ComboBox ?
  • Last Updated : 22 Apr, 2020

In this article we will see how we can clear all the items in the combo box. We know we can add items in the combo box with the help of addItem method to add single item and addItems method to add multiple items. In order to delete all the items in the combo box we will use clear method.

Syntax : combo_box.clear()

Argument : It takes no argument

Action performed : It will delete all the items of combo box

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. Inside the action delete the items of combo box with the help of clear method

Below is the implementation –

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# 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 to clear the list
        button = QPushButton("Clear", self)
  
        # adding action to button
        button.pressed.connect(self.delete)
  
    def delete(self):
  
        # delete items of list
        self.combo_box.clear()
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

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Output :

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