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))
--
Regards
Jacek Kałucki
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