In this article we will see how we can change the value of spin box using stepBy method, we can step up the value of spin box with the help of arrow button as well but in order to change the value we use stepBy method, this method add the passed value to the current value. In order to do so we use stepBy method.
Syntax : spin_box.stepBy(n) Argument : It takes integer as argument Action performed : It change the value of spin box
Implementation steps : 1. Create a spin box 2. Create a push button 3. Add action to the push button 4. Inside the action call the stepBy 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 spin box
self .spin = QSpinBox( self )
# setting geometry to spin box
self .spin.setGeometry( 100 , 100 , 250 , 40 )
# setting prefix to spin
self .spin.setPrefix("Prefix ")
# setting suffix to spin
self .spin.setSuffix(" Suffix")
# creating a push button
push = QPushButton("Press", self )
# setting geometry to the push button
push.setGeometry( 100 , 200 , 100 , 40 )
# adding action to the push button
push.clicked.connect( self .do_action)
# method called by push button
def do_action( self ):
# change value by 5 steps
self .spin.stepBy( 5 )
# 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 :