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Why CursorFill() is faster than CursorRefresh() in a CA?
Message
From
01/12/2010 03:47:17
 
 
To
01/12/2010 03:32:41
Lutz Scheffler
Lutz Scheffler Software Ingenieurbüro
Dresden, Germany
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Environment versions
Visual FoxPro:
VFP 9
OS:
Windows 7
Miscellaneous
Thread ID:
01491162
Message ID:
01491332
Views:
53
>>>>>Why CursorFill() is faster than CursorRefresh() in a CA?
>>>>>Note that both functions returns the same number of records and uses the same SelectCmd...
>>>>
>>>>CursorFill()
>>>>create the CA.Alias dbf
>>>>
>>>>CursorRefresh()
>>>>1. create a temp dbf
>>>>2. copy temp.dbf into the CA.Alias dbf
>>>>
>>>>the step 2. can require enough time,
>>>>and this force the dbf structure to not change
>>>
>>>Hi Fabio,
>>>
>>>are your shure?
>>>
>>>the DBF() is someting like SYS(2015)+'.DBF'
>>>I can see DBF(CA.ALIAS) change with every CursorRefresh.
>>>I run in this indexing a CA / View after Requery / CursorRefresh
>>>
>>>Agnes
>>
>>try to attach the CA.alias to a Grid.
>
>Done
>DBF() changes with every cursorrefresh Simple to see on Statusbar
>
dbf here does not change.

>No idea why the grid should make a difference

Grid do not like if recordsource file handle change
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