Suppressing the "Invalid Input" Error Message in FoxPro (90415)
The information in this article applies to:
- Microsoft Visual FoxPro for Windows 3.0
- Microsoft FoxPro for MS-DOS 2.0
- Microsoft FoxPro for MS-DOS 2.5
- Microsoft FoxPro for MS-DOS 2.5a
- Microsoft FoxPro for Windows 2.5
- Microsoft FoxPro for Windows 2.5a
- Microsoft FoxPro for Macintosh 2.5b
This article was previously published under Q90415 SUMMARY
When Microsoft FoxPro evaluates a user-defined function (UDF) that
returns the Boolean value .F., FoxPro displays the message "Invalid
Input (press space)" and halts execution until you press the SPACEBAR.
To suppress this error message, return the value 0 when the condition
is not met.
The code example below accepts input for a screen variable called
"mystate". The code calls a UDF to evaluate mystate, and displays a
customized error message when the state is not equal to "WA".
mystate=SPACE(2)
@ 2,2 GET mystate VALID checkit()
READ
PROCEDURE checkit
IF UPPER(mystate)<>"WA"
WAIT WINDOW "MYSTATE must be equal to WA" NOWAIT
RETURN 0
ENDIF
RETURN
| Modification Type: | Major | Last Reviewed: | 12/3/2003 |
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| Keywords: | KB90415 |
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