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EOF and BOF with Local Views
Message
From
16/02/2015 07:47:35
Lutz Scheffler (Online)
Lutz Scheffler Software Ingenieurbüro
Dresden, Germany
 
 
To
16/02/2015 07:43:20
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivia
General information
Forum:
Visual FoxPro
Category:
Other
Environment versions
Visual FoxPro:
VFP 7 SP1
OS:
Windows 7
Network:
Windows 2008 Server
Database:
Visual FoxPro
Application:
Desktop
Miscellaneous
Thread ID:
01615325
Message ID:
01615362
Views:
47
>>Can you use EOF and BOF commands with views. My code reads:
>>
>>sele v_vendors
>>
>>do case
>> case bof()
>> **do something with navigation button
>>
>> endcase
>>
>>But nother happens. I'm sure I'm sitting on the first record in the table so therefor shouldn't BOF = .T.?
>
>The use of BOF and EOF in Visual FoxPro is not entirely consistent (with one another). If you have 10 records in total, and go to the last record, EOF() will be .F., RECNO() will be 10; if you then SKIP, EOF() will be .T., and RECNO() will be 11. On the other hand, if you got to the first record, initially BOF() will be .F. and RECNO() will be 1 (fine with me, so far...). But if you then SKIP -1, BOF() will be .T., and RECNO() will still be 1.
>In any case, you can use EOF() and BOF() in combination with commands such as SKIP, LOCATE, SEEK(), ... to check whether you are still on a valid record. I believe the only command that will can set BOF() = .T., is a backwards SKIP.

Kick in SET ORDER or the like and the BOF() might be on record 10 as well.

Update:
FILTER
INDEX
ORDER

That's what I remember out of the hip
Words are given to man to enable him to conceal his true feelings.
Charles Maurice de Talleyrand-Périgord

Weeks of programming can save you hours of planning.

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