Tkinter Listbox looses selection on Tab

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  • Jørgen Hansen
    #1

    Tkinter Listbox looses selection on Tab

    Hi

    I have a problem with a Listbox in Tkinter. When I tab through several
    widgets with the tab-key, the listbox looses its selection, even
    though it has been selected with .selection_set. The example below
    demonstrates this. Can anyone provide me with some help on this?

    Regards
    Jorgen

    Ps. I'm on a W2K machine with Python 2.2.2

    ----
    from Tkinter import *

    root = Tk()
    colors = ['Yellow', 'Black', 'White', 'Green']

    lb = Listbox(root)
    for color in colors:
    lb.insert(END, color)

    lb.selection_se t(0)
    lb.pack()
    Entry(root).pac k()
    root.mainloop()
    ----
    Tags: None
    • Martin Franklin
      #2
      Re: Tkinter Listbox looses selection on Tab

      On Tuesday 22 July 2003 19:40, Jørgen Hansen wrote:[color=blue]
      > Hi
      >
      > I have a problem with a Listbox in Tkinter. When I tab through several
      > widgets with the tab-key, the listbox looses its selection, even
      > though it has been selected with .selection_set. The example below
      > demonstrates this. Can anyone provide me with some help on this?
      >
      > Regards
      > Jorgen
      >
      > Ps. I'm on a W2K machine with Python 2.2.2
      >
      > ----
      > from Tkinter import *
      >
      > root = Tk()
      > colors = ['Yellow', 'Black', 'White', 'Green']
      >
      > lb = Listbox(root)[/color]


      Jorgen,

      Try setting exportselection =0 in the Listbox construction like so:

      lb = Listbox(root, exportselection =0)

      This seems to work on my linux box.


      Martin




        Comment

        • Jørgen Cederberg
          #3
          Re: Tkinter Listbox looses selection on Tab

          Martin Franklin wrote:[color=blue]
          > On Tuesday 22 July 2003 19:40, Jørgen Hansen wrote:
          > [color=green]
          >>Hi
          >>
          >>I have a problem with a Listbox in Tkinter. When I tab through several
          >>widgets with the tab-key, the listbox looses its selection, even
          >>though it has been selected with .selection_set. The example below
          >>demonstrate s this. Can anyone provide me with some help on this?
          >>
          >>Regards
          >>Jorgen
          >>
          >>Ps. I'm on a W2K machine with Python 2.2.2
          >>
          >>----
          >>from Tkinter import *
          >>
          >>root = Tk()
          >>colors = ['Yellow', 'Black', 'White', 'Green']
          >>
          >>lb = Listbox(root)[/color]
          >
          >
          >
          > Jorgen,
          >
          > Try setting exportselection =0 in the Listbox construction like so:
          >
          > lb = Listbox(root, exportselection =0)
          >
          > This seems to work on my linux box.
          >
          >
          > Martin
          >
          > [/color]

          Hi Martin,

          It worked on my W2K machine too! Thanks alot. I skimmed through some
          TCL/TK documentation, but I'm still somewhat puzzled over the default
          behavior.

          But I'm sure I'll figure it out someday.

          Have a nice day
          Jorgen

            Comment

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