Require a Regular Expression For Below Task

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Hi,

I require a regular expression for date entry such that it allows following three conditions

1.)11/11/14
2.)11/11
3.)11

User can enter anything,I mean entire date(1st case),date with month(2nd case) and only date(3rd case).

I have a RegEx
\d{1,2}\/\d{1,2}\/\d{1,4}
This allows only 1st case.

Can anyone help me getting all 3 cases right.

P.S. Am using C#.net

Thanks in advance

Posted 10-Dec-14 2:14am

NiteshPanj

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OriginalGriff · Accepted Answer · 2014-12-10T02:47:00

Solution 1

Try:

(?<day>\d{1,2})(\/(?<month>\d{1,2})(\/(?<year>\d{1,4}))?)?

[edit]"HTML" swallowed[/edit]

Posted 10-Dec-14 2:47am

OriginalGriff

Updated 10-Dec-14 2:48am

v2

Comments

Brian A Stephens 18-Dec-14 15:27pm

It still allows for one-digit and three-digit years, as the OP requested. Not sure what dates he's expecting, but (\d{2}){1,2} might be better.