Re: Informix Ring Menu - Before Menu Option

Ken McCoy wrote: > > Hello again everyone, > > Hopefully there is something I'm overlooking here (code follows). > > Here is the problem . . . > 1.) You have a great 4gl menu with a Next and an Update option on. This could also apply to ordinary 4gl manus and downright terrible ones... > 2.) A user hits the Next option until the last record in the set is > reached . The user selects the Delete option from the menu and > deletes the last record. > 3.) Everything is cool at this point. On the delete, we try to get the > next record. We check the status. We know we are at the last record. > So, we clear the form and pop up a message telling the user that there > are no more records to be found. > > 4.) THE PROBLEM: The update and Delete options still display on the > Menu. If the user chooses these options it will try to execute > the code associated with these options and generate Nasty error > messages. > > Is there any way, besides hardcoding flags or status variables, to > either: > 1.) re-execute the BEFORE MENU section of the MENU? > Which in this case would HIDE all options except > for "Query","Build","Options","Exit" > 2.) Disable or Hide the options some other way? Apart from the fact that you've given a choice of answers to your own question, you could consider FETCHing PREVIOUS and displaying that row; your menu options then remain valid except that they now work relative to the new last record. Ian Goddard