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FT_FEXIST()
Check for the existence of a field.
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Syntax
FT_FEXIST( <xVar>, <xVal> ) -> lVal
Arguments
<xVar> may be either a field name or ordinal .DBF position.
Returns
<lVal>, a logical indicating a field's existence or lack thereof.
Description
FT_FEXIST() enables existence checking before proceeding with
other operations.
Examples
lExi:= FT_FEXIST( "unit_prc" )
lExi:= FT_FEXIST( 2 )
- or -
nNum:= FT_FNUM( "unit_prc" )
lExi:= FT_FEXIST( nNum )
Source: FIELD.PRG
Author: Steve Kolterman
See Also:
FT_FVALLEN()
FT_FLEN()
FT_FDEC()
FT_FNUM()
FT_FTYPE()
FT_FVAL()
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