I have a combobox used with Tkinter I cannot get bind to execute appropriately. Currently I have:
self.ap_reason.bind("<<ComboboxChanged>>", self.Callback())This executes the following (or should, rather):
def Callback(self):
print("here")If I use lambda, it doesn't execute at all. If I remove lambda, then the bind executes as soon as the toplevel opens and not when changed. I've run this through debug so I can see where it's not executing the function properly - or at all. Not sure what else I should post here 'code-wise' so please feel free to ask if more information is neededed.
Its been awhile since i did tkinter so excuse me for being a little off.
Do you mean
ComboboxSelected?
import tkinter as tk
from tkinter import ttk
tkwindow = tk.Tk()
cbox = ttk.Combobox(tkwindow, values=[1,2,3], state='readonly')
cbox.grid(column=0, row=0)
cbox.bind("<<ComboboxSelected>>", lambda event: print(f"Selected! {event}"))
tkwindow.mainloop()import tkinter as tk
from tkinter import ttk
tkwindow = tk.Tk()
cbox = ttk.Combobox(tkwindow, values=[1,2,3], state='readonly')
cbox.grid(column=0, row=0)
def callback(event):
print(f'changed: {event}')
cbox.bind("<<ComboboxSelected>>", callback)
tkwindow.mainloop()
Oops, yes. "ComboboxSelected". I forgot to change that back when I was trying to find a solution.
Mother..
I always - Always - find the solution as soon as I posted a question.
So I had to move my function down one hierarchy and add
lambda x:
solution:
self.ap_reason.bind("<<ComboboxSelected>>", lambda x: Callback())
def Callback():
print("here")
(Dec-18-2018, 07:34 PM)WuchaDoin Wrote: [ -> ]self.ap_reason.bind("<<ComboboxSelected>>", lambda x: Callback())
I think you want
self.ap_reason.bind("<<ComboboxSelected>>", Callback)what you do is - call Callback, it will print (at the time when you bind) then return None and what you bind is
lambda x: None