Function DbSetNullValue() Foundation
Toggles NULL/NIL value support of a work area
DbSetNullValue([<lNullAllowed>]) -> lNullAllowed
The function DbSetNullValue() returns the value of the function prior to this call of DbSetNullValue()
DbSetNullValue() explicitly toggles NULL/NIL value support on a per work area basis. The default setting for handling null values is determined by the SET NULLVALUE command. For a more comprehensive explanation about null value hidding/transformation see SET NULLVALUE .
With DbSetNullValue(), NULL/NIL value support on the language level can be toggled at any time. This enables the programmer to disable NULL/NIL values for an XbpBrowse() object to automatically show empty values to the end user. In general enabling NULL/NIL values for business logic and disabling NULL/NIL values for displaying data is generally considered as a good practice.
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