Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Set Filter performance in Browse versus Grid
Message
From
24/10/1999 18:36:28
 
General information
Forum:
Visual FoxPro
Category:
Other
Miscellaneous
Thread ID:
00279680
Message ID:
00280690
Views:
17
Marcel-

Perhaps I misunderstand your point, but browse is also slower with a filter applied than a browse without a filter. It seems faster than a grid, because as David says, only enough records to fill the visible browse window are pulled in at a time. Whereas, the grid is populated with the cursor.

So, in either a grid or a browse, each record is evaluated against the filter criteria, but the grid does it for the entire cursor and the browse does it for a subset.

You can duplicate that in grids by using p-views and limiting how many records are gathered at a time.

>Slowness of Grids objects with the SET FILTER command in not a matter of perception. ( each record is evaluated before the Grid show the first matching record ! )
Previous
Next
Reply
Map
View

Click here to load this message in the networking platform