RE: How common is Table Buffering with DBFs??

Matt,

I use Buffering=5 in my product as well.

Tracy

-----Original Message----- From: ProfoxTech [mailto:profoxtech-bounces@leafe.com] On Behalf Of Koen Piller Sent: Monday, November 25, 2019 12:28 PM To: profoxtech@leafe.com Subject: Re: How common is Table Buffering with DBFs??

Matt,

I can'tdo without buffering in VFP. I dont think it is otherwise possible to do a proper UNDO. If not I am willing to learn how one can do an undo / redo without Buffering=5 If X# will produce a product without buffering that would mean a show stopper to me.

Regards, Koen

Op ma 25 nov. 2019 om 18:23 schreef Matt Slay mattslay@jordanmachine.com:

For a while when my app was still on DBFs (instead of Sql Server) I used Table Buffering, with TableUpdate() and TableRevert() on all my CRUD forms. I remember that it could get tricky keeping it all working correctly in the UI, but in the end I had a pretty good pattern in place. I took the path of making the user take the form into Edit Mode, then they could Save or Cancel, and I handled TableUpdate() or TableRevert() accordingly.

Anyway, I'm just trying to get a feel for how broadly used is Table Buffering is in DBF-based apps?? It it a low number like 10%, or maybe 30%?

Did any of the other XBase language every have this table buffering paradigm in them?

I'm probing into this as (self-assigned) research so I can enlighten the X# Dev Team if this is something they may face as a common pattern in VFP apps if anyone tried to move this sort of app over to X# one day.

-- *Matt Slay*, President Jordan Machine Co. 355 Clow Lane PO Box 170339 Birmingham, AL 35217 Ph: 205-849-5050 Fx: 205-849-5075 mattslay@jordanmachine.com mailto:mattslay@jordanmachine.com http://www.JordanMachine.com

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