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Q311063: PRB: FSIZE() Returns Zero If Expression Has Trailing Spaces

Article: Q311063
Product(s): Microsoft FoxPro
Version(s): 3.0,3.0b,5.0,5.0a,6.0,7.0
Operating System(s): 
Keyword(s): kbvfp kbvfp300b kbvfp500a kbvfp600 kbXBase kbGrpDSFox kbDSupport kbCodeSnippet kbvfp300
Last Modified: 13-NOV-2001

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0, 5.0a, 6.0, 7.0 
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SYMPTOMS
========

If you pass a field name that has trailing spaces to the FSIZE() function, it
will not find the name and will return 0.

CAUSE
=====

FSIZE() performs an exactly-equal test when searching for a matching field name.

RESOLUTION
==========

Use the ALLTRIM() function to strip out trailing spaces in the expression that
you pass to FSIZE().

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

Run the following code to see the behavior. Uncomment the last line for the
workaround.

  CREATE CURSOR test (cField C(30))
  INSERT INTO test VALUES ("labels.Type")
  lcField = SUBSTR(test.cField, AT(".", test.cField) + 1)
  lcAlias = LEFT(test.cField, AT(".", test.cField) - 1)

  USE HOME() + "labels" IN 0
  ? FSIZE(lcField, lcAlias)  && 0
  *!* ? FSIZE(ALLTRIM(lcField), lcAlias) && 12

Additional query words:

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Keywords          : kbvfp kbvfp300b kbvfp500a kbvfp600 kbXBase kbGrpDSFox kbDSupport kbCodeSnippet kbvfp300xSearch kbvfp500xSearch kbvfp700 
Technology        : kbVFPsearch kbAudDeveloper kbVFP300 kbVFP300b kbVFP500 kbVFP600 kbVFP700 kbVFP500a
Version           : :3.0,3.0b,5.0,5.0a,6.0,7.0
Issue type        : kbprb
Solution Type     : kbnofix

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