In this article we will see how we can access the prefix of the spin box, prefix is basically the text which is inserted before the value of spin box, prefix remain constant for each value of spin box i.e it is not editable. By default no prefix is set to the spin box we use setPrefix method to set the prefix. In order to access the prefix we will use prefix method.
Syntax : spin_box.prefix() Argument : It takes no argument Return : It returns string
Implementation steps : 1. Create a spin box 2. Add prefix to the spin box 3. Create label to show the prefix 4. Access the prefix with the help of prefix method 5. Show the prefix in label using setText 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 , 150 , 40 )
# adding prefix in combo box
self .spin.setPrefix("Value of x : ")
# creating label to show the prefix
label = QLabel( self )
# setting geometry of label
label.setGeometry( 100 , 160 , 200 , 30 )
# getting prefix of spin box
text = self .spin.prefix()
# showing prefix through label
label.setText("Prefix = \" " + text + "\"")
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
|
Output :