Re: [Tile-dev] Difference between tile entry and old entry

[Joe E. <jen...@fl...>]

> I found what I think is a difference in the tile entry and I believe I
> have a small test case here:
>[ ... ]
> If you run the program as is, it works fine.  What should happen is
> when you click the button, the tv1 (text variable 1) is updated via the
> called routine, and the validate command should update the tv2 (text
> variable 2).

This is a known (intentional, and documented) difference.

See <URL: http://tktable.sourceforge.net/tile/doc/entry.html >,
section "VALIDATION", subsection "DIFFERENCES FROM TK ENTRY
WIDGET VALIDATION".  Summarizing, the main differences are:

    (1) ttk::entry widgets don't set '-validate none' if
        a validation script changes the value; and
    (2) setting the linked -textvariable doesn't trigger validation.

There are a couple other minor differences having to do with
when errors get reported (the core [entry] widget uses an idle
handler in some circumstances where the [ttk::entry] reports
them immediately), and [ttk::entry] widget validation has
some additional interactions with the 'invalid' widget state,
but those are the main ones that may impact existing code.

> Is this a bug?  It might be a design change and I should change my
> stuff.  I realize from reading the doc that having a textvariable and a
> validatecommand might be problematic.

As far as I know, the [ttk::entry] widget doesn't have any
problems if -textvariable and -validatecommand are both specified
(subject to #2, above).


--Joe English

  jen...@fl...