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Question

Is there a way to get the choice of an OptionMenu, without knowing the name of the StringVar the choice is saved in?

I have an function that automatically creates more OptionMenu items, and gives their variable the same name. It also saves the OptionMenu object in a list:

def addInternalPartipantList():
    global coworkerDict
    global f

    choiceVar1 = StringVar(window)
    choiceVar1.set('Vælg medarbejder')
    coworkerChoice = OptionMenu(window, choiceVar1, *coworkerDict)
    f += 1
    coworkerChoice.grid(column = 2, row = f)
    chosenCoworkers.append(coworkerChoice)

Now can I do something like:

chosenCoworkers[0].getVar().get()

to get the chosen coworker in that specific OptionMenu?

or is there another way that I can specify which choiceVar1 it is that I want to get the value of?

The function is called by a Button, if that has any relevance for the answer to this question

Answer 1

Here is a simple example of how you can check a value when someone selects the item.

When you use a command to reference a function in the OptionsMenu method the command will automatically pass the value selected as the event. This way you can actually do something with that value without even knowing the StringVar.

import tkinter as tk

root = tk.Tk() 

def print_choice(event):
    print(choice_var.get()) # prints value based on choice var
    print(event)# prints selection directly from the event passed by the command in OptionMenu

working_list = ["Option 1", "Option 2", "Option 3", "Option 4"]
choice_var = tk.StringVar()
tk.OptionMenu(root, choice_var, *working_list, command=print_choice).pack()

root.mainloop()

Here is another example. No mater how many OptionsMenu you create if you set the command to a function you can always get the value selected without knowing the StringVar.

import tkinter as tk

root = tk.Tk() 

def print_choice(event):
    print(event)# prints selection directly from the event passed by the command in OptionMenu

working_list = ["Option 1", "Option 2", "Option 3", "Option 4"]

for i in range(4):
    tk.OptionMenu(root, tk.StringVar(), *working_list, command=print_choice).pack()

root.mainloop()