In my code below I have two option menus which are populated with the same list. In the final application the list is generated by importing a .csv file.
The user should be able to select two entries from the list.
Now the problem is, that changing the first option menu, will change instead the second one. The second one, however, works as expected.
I guess the function update_file_list_selection() and lambda function is implemented badly.
import tkinter as tk
from tkinter import ttk
class File_Selection():
def __init__(self, frame, text):
self.frame = frame
self.text = text
self.label_file = tk.Label(self.frame, text=text)
self.label_file.pack()
self.variable_file = tk.StringVar(self.frame)
self.option_list = ["no file loaded"]
self.variable_file.set(self.option_list[0])
self.optionmenu_file = tk.OptionMenu(self.frame, self.variable_file,
*self.option_list)
self.optionmenu_file.pack()
class View:
def __init__(self, view, update_list):
self.view = view
self.view.title("Test")
self.view.geometry("320x240")
self.view.resizable(False, False)
self.frame = tk.Frame(self.view)
self.frame.pack()
self.button = tk.Button(self.frame, text="Update", command=update_list)
self.button.pack()
self.file_one = File_Selection(self.frame, "File 1")
self.file_two = File_Selection(self.frame, "File 2")
class Controller:
def __init__(self):
self.root = tk.Tk()
self.view = View(self.root, lambda: self.update_file_list_selection())
self.files = ["File 1", "File 2", "File 3", "File 4"]
def run(self):
self.root.mainloop()
def update_file_list_selection(self):
self.active_file_selection = [self.view.file_one, self.view.file_two]
for file_selection in self.active_file_selection:
self.menu = file_selection.optionmenu_file["menu"]
self.menu.delete(0, "end")
for x in self.files:
file_selection.option_list.append(x)
self.menu.add_command(label=x,
command=lambda value=x: file_selection.variable_file.set(value))
file_selection.variable_file.set(self.files[0])
if __name__ == "__main__":
c = Controller()
c.run()
