On 07/09/11 10:07, Trevor J Christensen wrote:
> How could/would one programmatically open/close a ttk combobox (i.e.
> present/hide the list of values) without requiring the user to click on
> combobox down arrow?
>
> In other words, I want to programmatically change focus (from where ever
> it is) to the combobox and have the combobox list of values displayed
> (just as if I had clicked on the combobox down arrow control). I
> fiddled around with setting state (['pressed'] and ['focus']) but didn't
> succeed accomplishing this.
>
I haven't delved too deeply into ttk yet, but I know how to solve your
problem using Python Megawidgets (Pmw) instead.
PMW example:
from Tkinter import *
import Pmw
root = Tk()
c = Pmw.ComboBox(root, scrolledlist_items=['1','2','3'])
c.pack()
c.selectitem('1')
def dropdown():
c.invoke()
b = Button(root, text='test', command=dropdown)
b.pack()
root.mainloop()
Worked it out in ttk. You need to generate a button 1 event on the
combobox.
ttk example:
from Tkinter import *
import ttk
root = Tk()
c = ttk.Combobox(root)
c.pack()
c['values'] = ['1','2','3']
def dropdown():
c.event_generate('<Button-1>')
b = Button(root, text='test', command=dropdown)
b.pack()
root.mainloop()
Regards,
John
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