Depends on what you're taking. Ted's right about buffering and rollbacks, but I think you were referring to a different concept. Namely that the logic governing which tables to update and when doesn't belong in the user interface, it belongs in a business layer with actual storage issues governed by the data layer. I don't feel that this is an object engineering issue so much as a question of how strictly we layer our code and how much of the labor saving features .. in this case the ControlSource property... in VFP we're willing to give up to achieve the perfectly tiered and engineered app. -Lew
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Stanton Sent: Saturday, June 30, 2007 1:26 PM To: profox@leafe.com Subject: Object engineering #2 Further to that conversation, or perhaps further to my private further thoughts about it, how d'you update linked data? For example, I have a subscriptions table, which records subscriptions (cryptic I know), and a payments table, which records payments of all types. My "trader" screen has tabs for the different types of data, and there's one for subscriptions, and another for all payments. If I check the box in the grid for a particular subscription, it ought to immediately show up as checked on the payments page. I *was* doing this by updating the underlying data (saving the view for this grid, and refreshing the one for the other grid). But that has to be wrong, doesn't it? If only because it doesn't give me the ability to (easily) roll back all my edits. If I just update the screen (using the screen objects to locate and update the view[s]), then not only could I back out without making the change, but I'm keeping my layers separate, rather than tying them inextricably together as my previous strategy was doing. And then followed through even more rigorously, doesn't this mean I *have* to have all my linked data on one screen rather than opening separate screens/forms to update bits of linked data? Or is just that my medication is wearing off? Regards Mark Stanton One small step for mankind... [excessive quoting removed by server] _______________________________________________ Post Messages to: ProFox@leafe.com Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/[EMAIL PROTECTED] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
