Navigation: ABC Library Reference > BrowseClass > BrowseClass Methods >====== Previous (get the previous browse item)  ====== |    |
Previous, VIRTUAL
The Previous method gets the previous record from the browse view and returns a value indicating its success or failure.
Implementation:
Returns Level:Benign if successful, Level:Notify if it reached the end of the file, and Level:Fatal if it encountered a fatal error. Corresponding severity level EQUATEs are declared in ABERROR.INC. See Error Class for more information on error severity levels.
Level:Benign EQUATE(0)
Level:User EQUATE(1)
Level:Program EQUATE(2)
Level:Fatal EQUATE(3)
Level:Cancel EQUATE(4)
Level:Notify EQUATE(5)
The Previous method is called by the Fetch and ResetThumbLimits methods. Among other things, Previous calls the PARENT.Previous (ViewManager.Previous) method. See ViewManager for more information.
Return Data Type: BYTE
Example:
CASE MyBrowse.Previous() !get previous record
OF Level:Benign !if successful, continue
OF Level:Fatal !if fatal error
RETURN ! end this procedure
OF Level:Notify !if end of file reached
MESSAGE('Reached end of file.') ! acknowledge EOF
END
See Also: Fetch