Ektron CMS400.NET User Manual

Option Characteristics of Valid Response Used with
text field
ISBN The International Standard Book Number (ISBN)
is a 10-digit number that uniquely identifies books
and book-like products published internationally.
Every ISBN consists of ten digits. When printed,
the ISBN number is preceded by the letters ISBN.
The ten-digit number is divided into four parts of
variable length, each part separated by a hyphen.
The four parts of an ISBN are:
• Group or country identifier - identifies a
national or geographic grouping of publishers
• Publisher identifier - identifies a particular
publisher within a group
• Title identifier - identifies a particular title or
edition of a title
• Check digit - the single digit at the end of the
ISBN which validates it
(Above copied from www.isbn.org.)
ISSN The ISSN (International Standard Serial Number)
is an eight-digit number which identifies periodical
publications as such, including electronic serials.
The ISSN takes the form of the acronym ISSN
followed by two groups of four digits, separated by
a hyphen. The eighth character is a control digit
calculated according to a modulo 11 algorithm on
the basis of the 7 preceding digits; this eighth
control character may be an “X” if the result of the
computing is equal to “10”, in order to avoid
ambiguity.
(Above copied from www.issn.org.)
Custom Validation
Working with HTML Forms
Used with
calendar
field
The Text and Calendar field dialog’s Validation tab features a
validation area (illustrated below).
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