Compare the date value

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C#

string date="23-06-1999";

I have a date like this, now my requirement is i want to check the condition if the date is in "MM-dd-yy" format or not.

If the date is in the same format insert the records otherwise i want to display error message...

Can any body help me out of this...

Posted 12-Feb-13 23:07pm

pranathi.s

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*Karthik Harve* · Answer 1 · 2013-02-12T23:45:00

Solution 6

Hi,

along with DateTime.TryParseExact, you can make use of regular expressions.
use below expression for mm-dd-yyyy.
/^(0[1-9]|1[012])[/ -.](0[1-9]|[12][0-9]|3[01])[/ -.](19|20)\d\d+$/

refer article The 30 Minute Regex Tutorial[^] for more on regular expressions.

hope it helps.

Posted 12-Feb-13 23:45pm

Karthik Harve

Comments

Maciej Los 13-Feb-13 7:03am

Good answer! +5!

Karthik Harve 13-Feb-13 7:05am

Thanks Maciej. :-)

Kiran Susarla · Answer 2 · 2013-02-12T23:19:00

Solution 1

You can use DateTime.TryParseExact method and pass the appropriate dateformat. If it succeeds you can do your further processing.

Go through the below MSDN link for more info.
http://msdn.microsoft.com/en-us/library/ms131044.aspx[^]

All the best.

Posted 12-Feb-13 23:19pm

Kiran Susarla

Matej Hlatky · Answer 3 · 2013-02-12T23:30:00

Solution 5

Just use DateTime.TryParseExact Method[^].
You can optionally check if formatted parsed date is equal to input string.

Or you can use simple regex like this:

^\d{2}-\d{2}-20\d{2}$

In case you want to check if input is in 100% correct format, you should extend this pattern.

Posted 12-Feb-13 23:30pm

Matej Hlatky