On Saturday, November 20, 2010 01:16:22 pm Jacek Kałucki wrote:
> Użytkownik John Fabiani napisał:
> > Hi,
> >
> > I'm trying to create a wiki entry on how to dynamicly change the Choices
> > and Keys values of a dropdown.
> >
> > I created a form that contains a textbox, a subclassed dropdownlist, and
> > a button. I'd post the code but currently I'm using postgres for the
> > data to prove everything works. So I doubt it would be much help.
> >
> > In this case I'm using the value in a textbox to change the Choices of a
> > dropdown list. I bind the InteractiveChange of the textbox to a method
> > that calls the dropdown update(). This works very well when I make
> > changes to the textbox value the dropdown.update() changes the Choices,
> > and Keys.
> >
> > IOWs my subclass of dDropdownList calls a method that uses the value in
> > the textbox to get and set the Choices, and Keys.
> >
> > My issue appears if I attempt to use the Form.cancel() to revert back to
> > the old value of the textbox. I use a button to call the cancel
> > routine. It appears the dropdown.update() is called before the old
> > value of the textbox is established in the control.
> >
> > I've tried several ways to force the correct value into the textbox prior
> > to calling my dropdown.update() method without success.
>
> Hi.
>
> Try this patch:
>
> --- dDataControlMixin.py (revision 6195)
> +++ dDataControlMixin.py (working copy)
> @@ -81,7 +81,7 @@
> nm = self._name
> dabo.log.error(_("Could not set value of %(nm)s to
> %(val)s. Error message: %(e)s")
> % locals())
> - self.flushValue()
> + self._afterValueChanged()
> else:
> self._properties["Value"] = val
Thanks for the code - I'll test sometime in the future. It was raining here
on Sat and I thought I'd do something for the cause. But now I have to get
the honey do's done.
Johnf
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