<GetStart>
CSPro User's Guide
The CSPro System
Data Dictionary Module
The CSPro Language
Data Entry Module
Batch Editing Applications
Tabulation Applications
Data Sources
CSPro Statements and Functions
Statement Format Symbols
Alphabetical List of Functions and Statements
List of Reserved Words
Deprecated Features
Declaration Statements
Symbol Functions
Item Functions
Array Object
Audio Object
Barcode and QR Codes
Case Object
Document Object
File Object
Freq Object
Geometry Object
HashMap Object
Image Object
List Object
Map Object
Path
Pff Object
SystemApp Object
ValueSet Object
Program Control Statements
Assignment Statements
Data Entry Statements and Functions
Batch Edit Statements
Numeric Functions
String Functions
Multiple Occurrence Functions
General Functions
Date and Time Functions
AdjLBA Function
AdjLBI Function
AdjUBA Function
AdjUBI Function
DateAdd Function
DateDiff Function
DateValid Function
PublishDate Function
SetLB Function
SetUB Function
SysDate Function
SysTime Function
timestamp Function
timestring Function
External File Functions
Synchronization Functions
Templated Reporting System
HTML and JavaScript Integration
Action Invoker
Appendix
<CSEntry>
<CSBatch>
<CSTab>
<DataViewer>
<TextView>
<TblView>
<CSFreq>
<CSDeploy>
<CSPack>
<CSDiff>
<CSConcat>
<Excel2CSPro>
<CSExport>
<CSIndex>
<CSReFmt>
<CSSort>
<ParadataConcat>
<ParadataViewer>
<CSCode>
<CSDocument>
<CSView>
<CSWeb>
DateValid Function
Format
b =
datevalid
(
date
);
Description
The
datevalid
function determines whether a date is valid. The numeric expression
date
must be in YYYYMMDD (year/month/day) format.
Return Value
The function returns 1 (true) if the date is valid and 0 (false) otherwise.
Example
datevalid
(
20120229
);
// returns 1
datevalid
(
20130229
);
// returns 0
See also
:
DateAdd Function
,
DateDiff Function
,
SysDate Function