validation for date of birth

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Hi i need to use same textbox for inserting date of birth and age ie if a person knows dob he enters dob and if dob is unknown he enters age . So I need to validate my textbox using regular expression so a person can enter date in dd/mm/yyyy format or upto 3 digit age ..Please help me to validate my textbox either using regular expression or anything else

Posted 5-Sep-12 1:39am

Pratika05

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Sandeep Mewara 5-Sep-12 7:42am

What have you tried so far?

VIPR@T 5-Sep-12 7:43am

please show your code here

Pratika05 5-Sep-12 7:57am

i have tried
ValidationExpression="^(((0[1-9]|[12]\d|3[01])\/(0[13578]|1[02])\/((1[6-9]|[2-9]\d)\d{2}))|((0[1-9]|[12]\d|30)\/(0[13456789]|1[012])\/((1[6-9]|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])\/02\/((1[6-9]|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$"

for validating date but i also want to validate age in same expression

3 solutions

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OriginalGriff · Answer 1 · 2012-09-05T01:55:00

Solution 1

If you must do it like that, try this regex:

^((?<day>\d{1,2})/(?<month>\d{1,2})/(?<year>(?:\d{4}|\d{2}))|(?<age>\d{1,3}))$

But me? I'd use two controls, and a radio button. And one of the controls would be a date picker.

[Edit]System added spurious closing tags - OriginalGriff[/Edit]

Posted 5-Sep-12 1:55am

OriginalGriff

Updated 5-Sep-12 1:57am

v2

Comments

Pratika05 5-Sep-12 8:09am

it shows error

OriginalGriff 5-Sep-12 8:18am

What error?

BillW33 · Answer 2 · 2012-09-05T03:00:00

Solution 3

If you want to learn more about Regular Expressions you should check out this site[^. To uitilize a large library of Regular Expressions go to http://regexlib.com[^]. They also have a RegEx tester[^]. Also a very useful RegEx tool is available here.

Posted 5-Sep-12 3:00am

BillW33

Updated 6-Sep-12 3:46am

v2

Pratika05 · Answer 3 · 2012-09-05T02:31:00

Solution 2

C#

ValidationExpression="^((((0[1-9]|[12]\d|3[01])\/(0[13578]|1[02])\/((1[6-9]|[2-9]\d)\d{2}))|((0[1-9]|[12]\d|30)\/(0[13456789]|1[012])\/((1[6-9]|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])\/02\/((1[6-9]|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))|(\d{1,3}))$"

Posted 5-Sep-12 2:31am

Pratika05

Updated 5-Sep-12 3:19am

v2

Comments

Pratika05 5-Sep-12 8:32am

is my solution right

Anuja Pawar Indore 5-Sep-12 9:20am

Use improve question and paste your code there. Don't write it as answer