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How add a custom item for null values in DBLookupComboBox
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Topic: How add a custom item for null values in DBLookupComboBox (Read 2141 times)
juco
New Member
Posts: 11
How add a custom item for null values in DBLookupComboBox
«
on:
May 07, 2018, 03:33:57 pm »
I have a DBLookupComboBox linked to two Data Sources, one for the work query and another for the list, I need to add an additional element in the list (that does not exist in the query) that indicates when the KeyValue is null
Any ideas please?
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juco
New Member
Posts: 11
Re: How add a custom item for null values in DBLookupComboBox
«
Reply #1 on:
May 07, 2018, 07:09:40 pm »
I do not know if the answer is the most appropriate, but in this way I got what I wanted
In the query for the list I added:
SELECT null As id, '(Empty)' AS description
UNION
SELECT id, description FROM rc_categories
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