CODEWITHSUNDEEP
pythontkinterwidget
Infinite_Loop
Infinite_Loop

Reputation: 380

Accessing a widget from a different frame in tkinter

I searched on this website and other websites, and I still cannot figure out how to change the text of a label residing on a different frame. Here is my code:

from tkinter import *

class mainW(Tk):
    def __init__(self, parent):
        Tk.__init__(self, parent)
        self.parent = parent
        self.widgets()
    def widgets(self):
        self.left = leftF(self)
        self.left.grid(row=0, column=0)
        self.right = rightF(self)
        self.right.grid(row=0, column=1)

class leftF(Frame):
    def __init__(self, parent):
        Frame.__init__(self, parent, bg="blue")
        self.parent = parent
        self.leftWidgets()
    def leftWidgets(self):
        self.Label = Label(self, text="Hello", bg="red", fg="white")
        self.Label.grid(row=0, column=0, padx=5, pady=5)

class rightF(Frame):
    def __init__(self, parent):
        Frame.__init__(self, parent, bg="white")
        self.parent = parent
        self.rightWidgets()
    def rightWidgets(self):
        self.Button = Button(self, text="change text", bg="yellow", fg="black", command=self.action)
        self.Button.grid(row=0, column=0, padx=5, pady=5)
    def action(self):
        self.targetFrame = leftF(self)
        self.targetLabel = self.targetFrame.Label
        self.targetLabel.config(text="World")

if __name__=="__main__":
    mainW(None).mainloop()

Essentially, the action that is assigned to the button residing on rightF should change the text of the label on leftF. If anyone can direct me to the right direction, I would really appreciate.

Thank you.

Upvotes: 2

Views: 3203

Answers (1)

Jannick
Jannick

Reputation: 1046

The problem is that you are creating a new object with

self.targetFrame = leftF(self)

and not referencing the original one. Change the action function to

    def action(self):
        self.parent.left.Label.config(text="World")

and it will work.

Upvotes: 4

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