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PyQt5 QDateTimeEdit – QDateTime Changed Signal
  • Last Updated : 10 Jul, 2020

In this article we will see how we can get QDateTime changed signalof the QDateTimeEdit widget. QDateTime is basically a combination of QDate and QTime i.e it has both date and time. And QDateTimeEdit widget is used to show or receive the QDateTime. We can set QDateTime to it with the help of setDateTime method.
This signal is emitted when there is a change in the QDateTime

In order to do this we will use dateTimeChanged method with the QDateTimeEdit object.

Syntax : datetimeedit.dateTimeChanged.connect(method)

Argument : It takes method as argument

Return : It returns None



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, 500, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for components
    def UiComponents(self):
  
        # creating a QDateTimeEdit widget
        datetimeedit = QDateTimeEdit(self)
  
        # setting geometry
        datetimeedit.setGeometry(100, 100, 150, 35)
  
        # creating a label
        label = QLabel("GeeksforGeeks", self)
  
        # setting geometry to the label
        label.setGeometry(100, 160, 200, 60)
  
        # making label multi line
        label.setWordWrap(True)
  
        # datetime changed signal when emitted connect to the 
        # dt_method every time
        datetimeedit.dateTimeChanged.connect(lambda: dt_method())
  
  
        # method called by the datetime
        def dt_method():
  
            # getting current datetime
            value = datetimeedit.dateTime()
  
            # setting text to the label
            label.setText("New DateTime : " + str(value))
  
  
  
  
# 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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