PyQt5 – How to delete all the items in ComboBox ?
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 –
# 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 ()) |
Output :
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