RegEx Validations

Question

I am new to Reg Expressions. How can I check if a textbox can only hold Y,y,N,n values, Textbox 2 can only have string "abc" or "cba" What will be the ValidationExpression? I will really appreciate help. Thank you in advance.

ase · Accepted Answer · 2009-11-09 20:12:47Z

4

Your first example:

/[YyNn]/

Your other example:

/(abc|cba)/

I recommend reading about regular expressions here: http://perldoc.perl.org/perlretut.html

answered Nov 9, 2009 at 20:12

ase

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Nestor · Accepted Answer · 2009-11-09 20:13:47Z

1

Y|y|N|n for Textbox 1 (abc)|(cba) for Textbox 2

answered Nov 9, 2009 at 20:13

Nestor

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AntonioMO · Accepted Answer · 2009-11-09 20:21:22Z

1

If you are new to regular expressions, may I recommend this? http://code.google.com/p/kiki-re/

It's a regular expressions tester, you write your regex and some text to text it. It's really nice to learn about regexes and to test them too ;).

answered Nov 9, 2009 at 20:21

AntonioMO

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