On Thursday 25 February 2010 01:16:23 am Jacek Kałucki wrote:
> Użytkownik John napisał:
> > Hi,
> > Working with an interesting issue. I have a table (this is not my table)
> > that contains a legal null value for a field ("product_category") and
> > does not have a key (just text ). When I display the table in a grid all
> > is fine with the null value because the grid displays '<None>' as I would
> > have expected.
> >
> > I also have a dropdown for the same field that needs to allow a null
> > or '<None>' for the choices (ValueMode = string because there is no
> > key). I manually add the string '<None>' to the Choices. However, when
> > I select the records on the grid that contain null values, the dropdown
> > does not move to the related '<None>'. Selecting a record that does not
> > contain a Null (IOW's a string for the value) the dropdown selection
> > follows correctly. I can't add a null value to a Choices items. So I'm
> > looking for suggestions.
>
> Hi,
>
> Did you try:
> ValueMode = "Key"
> Choices = ["<None>", "Foo"]
> Keys = [None, "Foo"]
>
> Just repeat keys same as choices, e.g.
> set Keys list and next run:
> for key in Keys:
> Choices.append(str(key))
That might have worked - see the solution that was used.
Johnf
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