PyQt - QFormLayout Class


QFormLayout is a convenient way to create two column form, where each row consists of an input field associated with a label. As a convention, the left column contains the label and the right column contains an input field. Mainly three overloads of addRow() method addLayout() are commonly used.

Sr.No. Methods & Description
1

addRow(QLabel, QWidget)

Adds a row containing label and input field

2

addRow(QLabel, QLayout)

Adds a child layout in the second column

3

addRow(QWidget)

Adds a widget spanning both columns

Example

This code adds a LineEdit field to input name in the first row. Then it adds a vertical box layout for two address fields in the second column of the next row. Next, a horizontal box layout object containing two Radio button fields is added in the second column of the third row. The fourth row shows two buttons ‘Submit’ and ‘Cancel’.

import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *

def window():
   app = QApplication(sys.argv)
   win = QWidget()

   l1 = QLabel("Name")
   nm = QLineEdit()

   l2 = QLabel("Address")
   add1 = QLineEdit()
   add2 = QLineEdit()
   fbox = QFormLayout()
   fbox.addRow(l1,nm)
   vbox = QVBoxLayout()

   vbox.addWidget(add1)
   vbox.addWidget(add2)
   fbox.addRow(l2,vbox)
   hbox = QHBoxLayout()

   r1 = QRadioButton("Male")
   r2 = QRadioButton("Female")
   hbox.addWidget(r1)
   hbox.addWidget(r2)
   hbox.addStretch()
   fbox.addRow(QLabel("sex"),hbox)
   fbox.addRow(QPushButton("Submit"),QPushButton("Cancel"))

   win.setLayout(fbox)
   
   win.setWindowTitle("PyQt")
   win.show()
   sys.exit(app.exec_())

if __name__ == '__main__':
   window()

The above code produces the following output −

QFormLayout Class Output