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How can I get the record number?

long lingyu
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Joined: Feb 15, 2004
Posts: 51
I don't know because if there is a deleted record, I can't cal the record number. My method is the (db_file_length-header_length)/One_record_length.
Satish Avadhanam
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Joined: Aug 12, 2003
Posts: 697
Hi long, it would be easy if you can explain the problem situation in more detail. I could not understand what you asked. Sorry.
Nicholas Cheung
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Joined: Nov 07, 2003
Posts: 4982
I think you want to do this, rite?

I think you want the display to be this:

You can still get the record number, but that record is being mark as deleted.
One thing you can do is (what I have done) you do NOT shift the record number. I keep the original display, but I do not allow the deleted record to be displayed. In addition, I hide the record number column, so that the user feel observationally equivalent between the 2 displays.
Since I think the user dont care whether they know the record number, as they need to highlight the record to have a booking, and thus, I simply hide it, rather than displaying it out, and *reconstruct* the numbering.

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Mark Smyth
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Joined: Feb 04, 2004
Posts: 288
I agree I dont think that all active record numbers should have do be sequential, in fact if you didn't count the delected records it would make random access impossible IMHO.

I agree. Here's the link:
subject: How can I get the record number?
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