How Do I Validate Date With Regex?

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I am trying to validate date in format MM/DD/YYYY exactly in the same format.
Please help
And is it possible to extract range of date with regex?

Posted 16-Apr-15 20:06pm

dirtyshooter

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OriginalGriff · Answer 1 · 2015-04-16T20:19:00

Don't use a regex: you can do it, but it's horribly complex when you start thinking about 28 day months, 30 day, and 31 day months, and then there are leap years...
Try:

DateTime dt;
if (DateTime.TryParseExact("04/17/2015", "MM/dd/yyyy", CultureInfo("en-US"), DateTimeStyles.None, out dt))
   {
   ...

Abhinav S · Answer 2 · 2015-04-16T20:17:00

Solution 1

Try "(((0|1)[1-9]|2[1-9]|3[0-1])\/(0[1-9]|1[0-2])\/((19|20)\d\d))$" as your expression.

Posted 16-Apr-15 20:17pm

Abhinav S

RajeeshMenoth · Answer 3 · 2015-04-16T20:41:00

Solution 3

Hi,

C#

DateTime Test;
       if ((!string.IsNullOrEmpty(strtdate)))
       {
           bool valid = DateTime.TryParseExact(strtdate, "M/dd/yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out Test);
       }

Ref : Validate the string entered is of mm/dd/yyyy format

Posted 16-Apr-15 20:41pm

RajeeshMenoth