[Tkinter-discuss] initial state of radiobutton

[Michael O'Donnell]

Hi Iain,

  My earlier reply established that the radio widget IS functioning correctly
on your machine in the usual case. If there is still something wrong, I'd have
to see runnable code from your app which fails to set the radio. Can you
make a minimal case which uses the class structure you discuss, and
still doesn't work, and send it (probably as a compressed archive,
e.g., zip file).

I'll then see if I can find the bug. What OS are you on?

Mick

On Sat, Aug 16, 2008 at 9:34 PM, Iain Day
<iain at day-online.org.uk.invalid> wrote:
> Hi Mick,
>
> Sorry about that. The code below does work, however, in my case its a little
> more complex. I'll try and explain. I've put most of the code into different
> modules which get imported in the usual way, so I have one that has all the
> classes for the menu bar. There is also a class in here which generates the
> tkSimpleDialog for the preferences. Is is here that I've got the bit of code
> I posted below.
>
> __main__.angles is set correctly, and if I do:
>
> print tk.StringVar.get(angles)
>
> I get the correct result.
>
> I'm a little confused. Also if I put angles into an Entry widget it is
> correct.
>
> Thanks for your help,
>
> Iain
>
> Michael O'Donnell wrote:
>>
>> Dear Iain,
>>
>>    Makes it easier to test your code if you provide
>> a standalone example.
>>
>> I modified your code as follows to get it to run:
>>
>> import Tkinter as tk
>> master = tk.Tk()
>> settings = tk.LabelFrame(master, text="Settings")
>> settings.grid(row=0, column=0)
>> tk.Label(settings, text="Angular Units: ").grid(row=0, column=0,
>> sticky=tk.E)
>> angles = tk.StringVar(value='radians')
>> tk.Radiobutton(settings, text="Degrees", variable=angles,
>> value='degrees').grid(row=0, column=1)
>> tk.Radiobutton(settings, text="Radians", variable=angles,
>> value='radians').grid(row=0, column=2)
>> master.mainloop()
>>
>> ...and on my Macosx running python 2.5.2 it runs fine, with buttons
>> selected.
>>
>> My bet is that angles is not in fact set, or is not set
>> to one of 'degrees' or 'radians'. Put a print statement to
>> see what value  __main__.angles has at the point of
>> setting the variable angles.
>>
>> Mick
>>
>>
>>
>> On Fri, Aug 15, 2008 at 6:19 AM, Iain Day
>> <iain at day-online.org.uk.invalid> wrote:
>>>
>>> Hi,
>>>
>>> I'm trying to create a preferences dialog. At the moment, I'm just
>>> reading a
>>> config file using ConfigParser and displaying this in a tkSimpleDialog.
>>>
>>> I've got some Entry widgets working okay, but I can't get the
>>> radiobuttons
>>> to work. The code is:
>>>
>>> import Tkinter as tk
>>>
>>> settings = tk.LabelFrame(master, text="Settings")
>>> settings.grid(row=0, column=0)
>>>
>>> tk.Label(settings, text="Angular Units: ").grid(row=0, column=0,
>>> sticky=tk.E)
>>>
>>> angles = tk.StringVar(value=__main__.angles)
>>>
>>> tk.Radiobutton(settings, text="Degrees", variable=angles,
>>> value='degrees').grid(row=0, column=1)
>>>
>>> tk.Radiobutton(settings, text="Radians", variable=angles,
>>> value='radians').grid(row=0, column=2)
>>>
>>> When I run this, angles is set to degrees but I don't get the radiobutton
>>> active (either of them).
>>>
>>> What am I doing wrong?
>>>
>>> Thanks,
>>>
>>> Iain
>>>
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>
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