I want regular expression help

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My regular expression is like that

rev.ValidationExpression = "[0-9]+([/./]?[0-9]?[0-9]?[0-9]?[0-9]?)?";

So if i enter 2.333333 like that showing error, but if i enter 3.(followed by decimal) only not showing error. apart from everything is working fine. Thanks in advance. that is whaat i wanted but when i enter it in my code still showing error . i want to get the
solution for if i dont enter anything after . it should show error. eg.4.(error)

Posted 26-Apr-11 0:01am

taher ahmed choudhury

Updated 26-Apr-11 0:26am

v4

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Eduard Keilholz · Answer 1 · 2011-04-26T00:13:00

Solution 1

I think you may want to change te regex to :
[0-9]+([\.]?[0-9]?[0-9]?[0-9]?[0-9]?)?

Posted 26-Apr-11 0:13am

Eduard Keilholz

Comments

taher ahmed choudhury 26-Apr-11 6:20am

if i enter ur code in my code showing unrecognised escape sequence after \

taher ahmed choudhury 26-Apr-11 6:22am

still showing error

Kim Togo 26-Apr-11 7:19am

You have to:

rev.ValidationExpression = @"[0-9]+([\.]?[0-9]?[0-9]?[0-9]?[0-9]?)?"

Eduard Keilholz 26-Apr-11 8:25am

If you use C#, you have to esccape the '\' character. Use [0-9]+([\\.]?[0-9]?[0-9]?[0-9]?[0-9]?)? instead, or @"[0-9]+([\.]?[0-9]?[0-9]?[0-9]?[0-9]?)?"

Have fun!

taher ahmed choudhury 27-Apr-11 0:21am

still not validating if i enter digit followed by decimal eg.3. apart from the rest are working
fine. so i need ur help. thanks in advance.

Sergey Alexandrovich Kryukov 26-Apr-11 16:15pm

Prefer "@" (verbose) string literal!
My 5.
--SA

taher ahmed choudhury 26-Apr-11 23:43pm

still it is not showing error. After entering any digit followed by decimial(e.g 5.) it should show error.thanks for ur reply.

Sergey Alexandrovich Kryukov 27-Apr-11 0:01am

Don't look for error, use debugger...
Please reply to Eduard, not to me.
--SA

Steven.Pinto2000 · Answer 2 · 2011-04-28T02:29:00

Solution 2

Thanks for the question
and here is the answer for it [0-9]+([/./]+?[0-9]+?[0-9]?[0-9]?[0-9]?)+? or
\d+([\.]+?\d+?\d?\d?\d?)+? and to learn more about regex click on the following ling Click Here and in order to validate the regex Click Here

Posted 28-Apr-11 2:29am

Steven.Pinto2000