Calling a lineEdit value from one form to another form

[LT-K101]

I want to call the LineEdit value (id_no) from form A on form B and C. Each form has a unique content and a unique database table. Any assistance please?Thanks in advance.

class MainWindow(QtWidgets.QMainWindow):

    def __init__(self, mainMenu):
        global new_id_no
        new_Id_no= id_no

        super(MainWindow, self).__init__()
        self.mainMenu = mainMenu

        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)



        self.ui.First_Add_Button.clicked.connect(self.Form_A)
        self.ui.Second_Add_Button.clicked.connect(self.Form_B)
        self.ui.Third_Add_Button.clicked.connect(self.Form_C)


    def Form_A(self):
        id_no = self.ui.lineEdit.text()
        name = self.ui.lineEdit_1.text()



   def Form_B(self):
        address = self.ui.lineEdit_2.text()
        city = self.ui.lineEdit_3.text()
  


   def Form_C(self):
        country = self.ui.lineEdit_4.text()
        

[JonB]

@LT-K101 said in Calling a lineEdit value from one form to another form:

call the LineEdit value (id_no)

Don't know what "calling" a line edit or its value means. Your "Form"s are just methods in class MainWindow, no other classes here. Your variables inside the methods (id_no, address, etc.) are just local variables in the methods, so they are irrelevant for the outside world. There is nothing here to use other than the necessary self.ui.lineEdit_someNumber from no matter which method. Unless you want to do something about rewriting your code, like utility getters (or you could use a Python @property decorator if you prefer):

def address():
    return self.ui.lineEdit_2.text()

Or maybe

    def Form_A(self):
        self.id_no = self.ui.lineEdit.text()

but that is not clever coding practice.

The logic of whatever you intend by calling self.Form_A from First_Add_Button.clicked is not clear, as it stands it accomplishes nothing.

[LT-K101]

@JonB Thanks for your response . I want to pass the id_no to the other forms database. I declared it as a global variable and it worked.

[JonB]

@LT-K101 said in Calling a lineEdit value from one form to another form:

I declared it as a global variable and it worked.

I know, but that is so not the way to do it!

I don't begin to have the time to show & teach you what you should be doing, I'm afraid....