Article ID: 79883
Article Last Modified on 8/16/2005
APPLIES TO
- Microsoft QuickBasic 4.5 for MS-DOS
- Microsoft BASIC Professional Development System 7.0
- Microsoft BASIC Professional Development System 7.1
This article was previously published under Q79883
SUMMARY
Error 56, "Field Statement Active," will occur on a PUT statement if you attempt to PUT a variable DIMensioned as a TYPE record structure, to a RANDOM file for which there is an active FIELD statement.
If a file has been FIELDed, you must use the FIELD variable(s) to PUT or GET information to or from the file. To use a TYPE variable, you must first CLOSE the file and then reOPEN it.
This information applies to Microsoft QuickBasic version 4.5 for MS-DOS and Microsoft Basic Professional Development System (PDS) versions 7.0 and 7.1 for MS-DOS and MS OS/2.
MORE INFORMATION
If you want to use the FIELD statement and a TYPE structure at the same time, the file must be closed and reopened when you want to switch between using the FIELD statement and the TYPE structure.
Code Example
' This program will give the error message "Field Statement
' Active" on the PUT statement
TYPE putType
s AS STRING * 12
END TYPE
DIM yoke AS putType
OPEN "thefile.txt" FOR RANDOM AS #1
FIELD #1, 12 AS x$ 'FIELD active
LSET x$ = "nirvana"
PUT #1 'PUT using FIELD variable
yoke.s = "soundgarden"
' Take out remarks on next two Basic lines to allow program to
' run, otherwise error 56 will occur on the next PUT:
' CLOSE #1
' OPEN "thefile" FOR RANDOM AS #1
'(closing and reopening file disables FIELD)
PUT #1, , yoke
CLOSE
END
Additional query words: QuickBas BasicCom 4.50 7.00 7.10
Keywords: KB79883
