How to Validate Birthday's , cheque date ...etc

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hey m a beginner in developing a windows desktop application n m stuck nw in validating the dates like birthday and all ..plz i need help !!

like :-
1)the date entered should be not less than 18yrs

2)the dates should be between 2 specific dates

plzzzz help me !!!

Posted 3-Feb-13 4:24am

Akash_shukla

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Abhinav S · Answer 1 · 2013-02-03T06:42:00

Solution 2

You can think about using the TimeSpan class[^] to calculate the difference between the two dates.

If you want to validate the date itself, think about using DateTime.TryParse.

Posted 3-Feb-13 6:42am

Abhinav S

OriginalGriff · Answer 2 · 2013-02-03T04:48:00

Convert your date to a DateTime (or use the DateTimePicker and get a DateTime directly - it's a better solution)
You can then just check it:

C#

string date = "2/2/2013";
DateTime dt = DateTime.Parse(date);
if (DateTime.Now >= dt.AddYears(18))
    {
    // 18 or over...
    }
if (new DateTime(2011, 12, 31) < dt && dt < new DateTime(2014, 1, 1))
    {
    // In date period
    }