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Technical Information

Application Development Manual | Determining data file size

Determining data file size


Read number of records written to the data file.


Detailed Description

The LOF function returns the number of records written to the data file.

Set fileno to the value specified when opening the data file.


Check number of records written to the data file

  private SNO$
private QTY$
private BARDATA$
private record%
open "TESTDATA.DAT" as #1                       ' open data file
field #1, 3 as SNO$, 5 as QTY$, 13 as BARDATA$  ' define fields
record% = lof(#1)                               ' read number of records written
close #1

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