CODEWITHSUNDEEP
pythontkinter
LaoDa581
LaoDa581

Reputation: 613

How to get the parent menu label of radiobutton?

I want to implement a 2-layer menu and press Confirm button to show its parent menu label and its value. Now I can get its value but have no idea how to get its parent menu label.

Please advise. Thank you.

import tkinter

def get_selection(menu, var):
  print('Menu: ' + menu.entrycget(0, "label"))  # How to get this ?
  print('Item: ' + var.get())

items = [['A', 'Apple', 'Amazon'], ['T', 'T-Mobile', 'Tesla']]
root = tkinter.Tk()
var = tkinter.StringVar(value='--')
menu_button = tkinter.Menubutton(
    root, textvariable=var, borderwidth=1, relief='raised')
main_menu = tkinter.Menu(menu_button, tearoff=False)
menu_button.configure(menu=main_menu)

for item in items:
  menu = tkinter.Menu(main_menu, tearoff=False)
  main_menu.add_cascade(label=item[0], menu=menu)
  for value in item[1:]:
    menu.add_radiobutton(value=value, label=value, variable=var)

menu_button.pack(fill=tkinter.BOTH, side=tkinter.TOP)
tkinter.Button(
    command=lambda: get_selection(menu, var),
    text='Confirm').pack(fill=tkinter.BOTH, side=tkinter.BOTTOM)

root.mainloop()

Expected Output

# Case 1
Menu: A
Item: Apple

# Case 2
Menu: T
Item: Tesla

Actual Output

# Case 1
Menu: T-Mobile
Item: Apple

# Case 2
Menu: T-Mobile
Item: Tesla

Upvotes: 1

Views: 93

Answers (1)

acw1668
acw1668

Reputation: 47093

Since you use same variable menu for all the cascade menu, so it finally refers to the last menu added.

You can use the text of the selected item to look up the required data in items:

def get_selection(var):
    value = var.get()
    menu = ""
    for item in items:
        if value in item:
            menu = item[0]
            break
    print('Menu: ' + menu)
    print('Item: ' + value)

...

tkinter.Button(command=lambda: get_selection(var), text='Confirm').pack(fill=tkinter.BOTH, side=tkinter.BOTTOM)

Upvotes: 2

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