asp.net regular expression

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I want to force the User to enter the correct time in a form in asp.net. I have Used a regular expression like this :
ValidationExpression="^(d{2})([:])(d{2})([:])(d{2})$">

but in every case it makes an Error ! please some one help with this ...

Posted 6-Feb-12 5:45am

EhsanGhanbari

Updated 6-Feb-12 6:40am

Uday P.Singh

v2

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ProEnggSoft 28-Mar-12 3:40am

Please see my solution (2). I think this may also be helpful to you.

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Jyothikarthik_N · Answer 1 · 2012-02-06T05:54:00

Solution 1

Try this:

"(\d{2})([:])(\d{2})([:])(\d{2})$"

I believe ^ is a negation, which means it should *not* be a digit of length 2

[Edit]
and to denote digit, you should be using \
Note: Make sure you have an escape @ character before the string, or replace the \ with \\
[\Edit]

Posted 6-Feb-12 5:54am

Jyothikarthik_N

Updated 6-Feb-12 6:11am

v3

Comments

EhsanGhanbari 6-Feb-12 11:58am

Unfortunately it doesn't work again.

[no name] 6-Feb-12 12:11pm

Please try now.

EhsanGhanbari 6-Feb-12 12:56pm

it works now , thanks a lot , ...

[no name] 7-Feb-12 0:34am

You're welcome, Mark it as solution if this solved!

Michel [mjbohn] 28-Mar-12 4:42am

Just to quibble a bit ;)
The ^ only means negation if placed after the opening [.
Placed at beginning of RegEx it means "start of line" just as "$" stands for "end of line"

ProEnggSoft · Answer 2 · 2012-03-27T21:39:00

Solution 2

The following regular expression can be used to validate the time including the valid values of hours, minutes and seconds.

^(([0-1]\d|2[0-3]):[0-5]\d:[0-5]\d|24:00:00)$

It can be tested online here
http://regexhero.net/tester/[^]

Posted 27-Mar-12 21:39pm

ProEnggSoft

Updated 27-Mar-12 22:22pm

v2