On Jan 8, 2008, at 5:59 PM, Adrian Klaver wrote:
> How does one go about getting a dropdown list to display a NULL value?
> In the properties for the list Value is set to < None > and
> ValueMode =
> String. If I go to record where there is a NULL value for the field
> I get the
> first choice displayed. If I go to a record with a non NULL value I
> get the
> correct value displayed.
Well, remember that the string "< None >" and the value None are not
equal, so setting the Value to the former will not match a None value.
What it sounds like you want to do is use "< None >" as the
displayed value, but None as the actual underlying value. In this
case, you'd set up the Keys property to contain the actual values,
including the None value, and a corresponding list for the Choices
property; you'd also need to set ValueMode="Key" to have the control
return the underlying Key values instead of the displayed string values.
Is that too confusing?
-- Ed Leafe
-- http://leafe.com
-- http://dabodev.com
_______________________________________________
Post Messages to: [email protected]
Subscription Maintenance: http://leafe.com/mailman/listinfo/dabo-users
Searchable Archives: http://leafe.com/archives/search/dabo-users
This message: http://leafe.com/archives/byMID/dabo-users/[EMAIL PROTECTED]
