On Thu, 2006-07-20 at 02:53 +0000, Stan Cook wrote:
> A newbie to Tkinter here. . . . . .
>
> I'm trying to set the focus on an Entry textbox with
> focus_set. I am using the grid manager. I created the same
> interface before using the pack() method and the focus_set
> worked, but now it says
>
> "AttributeError: 'NoneType' object has no attribute 'focus_set'"
>
> Below is the section of the code:
>
> # CREATES THE GUI FOR DCN INPUT
> def get_dcn():
> master = Tk()
> _dcn = StringVar()
> label1 = Label(text="Enter DCN:",width=10).grid(row=0)
> txtbox = Entry(relief=SUNKEN, width=20, takefocus=1,
> textvariable=_dcn).grid(row=0, column=1)
> txtbox.focus_set()
> btnOK=
> Button(text="OK",command=assign_dcn(_dcn)).grid(row=1, column=0)
> btnCancel = Button(text="Cancel",
> command=killer).grid(row=1, column=1)
> master.mainloop()
> return
>
> Does anyone know where I went wrong?
Yes. You set txtbox to be the return result of Entry(...).grid(...)
which is None.
What you want to do is is set txtbox to a tkinter instance:
def get_dcn():
master = Tk()
_dcn = StringVar()
label1 = Label(text="Enter DCN:",width=10)
label1.grid(row=0)
txtbox = Entry(relief=SUNKEN,
width=20,
takefocus=1,
textvariable=_dcn)
txtbox.grid(row=0, column=1)
txtbox.focus_set()
btnOK= Button(text="OK",command=assign_dcn(_dcn))
btnOK.grid(row=1, column=0)
btnCancel = Button(text="Cancel", command=killer)
btnCancel.grid(row=1, column=1)
master.mainloop()
return
Regards,
John
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