View Full Version : Null Values in Access Database: How to handle
Scott
11-07-2004, 02:43 AM
Try explicitly casting the database balue to string, i.e.,
DateSold = Row.Item("DateSold").ToString
arnold2004
11-07-2004, 02:57 AM
I hope someone out there has a good suggestion. I have an access database with cells I want to display however some of the cells may have Null values or otherwise empty. I want these cells if empty to display as empty on my website that accesses the database. How do I test for a null value.
Cast from type 'DBNull' to type 'Date' is not valid.
&
Cast from type 'DBNull' to type 'String' is not valid.
on these lines
DateSold = Row.Item("DateSold")
Comments = Row.Item("Comments")
How can I handle Null values from cells?
roryknowles
11-09-2004, 03:59 AM
Here is a function I use, normally for GetRows also:
FUNCTION isNul( value )
IF ISNull(value) or value = "" THEN
isNul = ""
ELSE
isNul = value
END IF
END FUNCTION</CODE>
then just call it like this:
DateSold = isNul(Row.Item("DateSold"))
arnold2004
11-09-2004, 07:54 AM
Thank you this really helped.
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