Difference between revisions of "ISBLANK()"
From Lianjapedia
Yvonne.milne (Talk | contribs) m (1 revision) |
m (Text replace - "Recital" to "Lianja") |
||
Line 43: | Line 43: | ||
==Products== | ==Products== | ||
− | + | Lianja, Lianja Server | |
[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] |
Revision as of 13:37, 7 December 2012
Purpose
Function to check for empty value
Syntax
ISBLANK(<expC> | <expD> | <expT> | <expL> | <memofield> | <expN>)
See Also
CTOD(), CTOT(), IIF(), IS_ARRAY(), IS_FLOAT(), IS_INT(), IS_OBJECT(), IS_STRING(), ISALPHA(), ISDIGIT(), ISLOWER(), ISUPPER(), SET CENTURY, SET DATE, SET MARK, SET SECONDS, SPACE(), TYPE()
Description
The ISBLANK() function returns .T. if the specified expression is 'empty'.
Data Type | Empty |
---|---|
Character | Space(0), "", [], , no text entered |
Date | CTOD(""),{}, {00/00/0000}, { / / } and other SET CENTURY, SET MARK and SET DATE variations |
Datetime | CTOT("") , { / / : : AM} and other SET CENTURY, SET MARK, SET SECONDS and SET DATE variations |
Logical | .F. |
Memo | No data entered |
Numeric | 0 |
Example
if isblank(name + address) dialog box "Name and address not specified." endif
Products
Lianja, Lianja Server