# Allow empty values in value list definition and integers

**URL:** <https://forum.servoy.com/t/allow-empty-values-in-value-list-definition-and-integers/4523>\
**Category:** Classic Servoy\
**Created:** [July 20, 2005, 11:24am UTC](https://forum.servoy.com/t/allow-empty-values-in-value-list-definition-and-integers/4523 "2005-07-20T11:24:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![patrick](https://avatars.discourse-cdn.com/v4/letter/p/b2d939/32.png) [@patrick](https://forum.servoy.com/u/patrick)\
**Post date:** [July 20, 2005, 11:24am UTC](https://forum.servoy.com/t/allow-empty-values-in-value-list-definition-and-integers/4523/1 "2005-07-20T11:24:51Z")

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Hello,

when checking “Allow empty values” in a custom value list attached to an integer field and choosing that empty value, I get this error:

> java.lang.IllegalArgumentException: Setting dataprovider with name ‘integer\_colum’ type ‘INTEGER’ with value of wrong type

Can this be changed so the column will be NULL when choosing an empty value?

Thanks  
Patrick