I'm developing an easy program and I need to get the value from a Combobox
. It is easy when the Combobox
is in the first created window but for example if I have two windows and the Combobox
is in the second, I am not able read the value from that.
For example :
from tkinter import *
from tkinter import ttkdef comando():print(box_value.get())parent = Tk() #first created window
ciao=Tk() #second created window
box_value=StringVar()
coltbox = ttk.Combobox(ciao, textvariable=box_value, state='readonly')
coltbox["values"] = ["prova","ciao","come","stai"]
coltbox.current(0)
coltbox.grid(row=0)
Button(ciao,text="Salva", command=comando, width=20).grid(row=1)
mainloop()
If I change the parent of the widget from ciao
to parent it works!
Can anyone explain me?