Erases the values in a choice list, which can then be reset with SetFieldChoiceList.
Makes the cached choice list for the field incorrect so that when GetFieldChoiceList is called next time, the Rational ClearQuest Form either gets a choice list from the database or a hook program.
VBScript
entity.InvalidateFieldChoiceList field_name
Perl
$entity->InvalidateFieldChoiceList (field_name);