@Unavailable

Deletes a variable in a document or a VARGROUP by returning the value UV Unavailable when it is used as the right-hand value of an assignment.

Example: @Unavailable

DBHANDLE:=@OpenDB("TEST.NSF");
VIEWHANDLE:=@OpenView(DBHANDLE;"TEST VIEW");
VIEWPOSITION:=1:1:1:0:0:0:0:0:0:0;
NOTEHANDLE:=@OpenNoteByPosition(DBHANDLE;VIEWHANDLE;VIEWPOSITION;NOTEHANDLE);
Category[NOTEHANDLE]:=@Unavailable;
NOTEHANDLE:=@CloseNote(NOTEHANDLE;1);
VIEWHANDLE:=@CloseView(VIEWHANDLE);
DBHANDLE:=@CloseDB(DBHANDLE);

A database is opened, a document is searched for and opened, its field "Category" is deleted, then saved, and finally the database is closed again.

Note : This text was machine-translated and may contain inaccuracies.