DateTime格式C＃

Question

I have a string which needs to be converted and validated to a DateTime. The string is in the following format 'dd.mm.yy' I am trying to convert it to DateTime using the following

string format = "dd.mm.yy";
date = DateTime.ParseExact(current.Substring(aiRule.AiLength), format, 
                                           CultureInfo.InvariantCulture);

but unfortunately this fails. The question is how to convert a string in the format 'dd.mm.yy' to a DateTime ? Thank you

Answer 1

mm means "minutes". I suspect you want "dd.MM.yy" . See MSDN for more information about custom date and time format strings .

(In particular, read the part about the "yy" specifier and how it chooses which century to use. If you can possibly change the input to use a four digit year, that could save you some problems...)

Answer 2

I'll tell something "heretical". If dd.MM.yy (with 2 or 4 yy ) is the format of your local culture, then you could let the DateTime.Parse (not ParseExact !) do its work without setting it to CultureInfo.InvariantCulture , or perhaps setting it to your local culture like new CultureInfo("it-IT") .

Answer 3

the string format should be like this....

string Format =  "dd.MM.yy"


 mm is for showing minutes 

 MM is for showing months..

I hope it will helps you...

Answer 4

As earlier posts has already pointed out, mm means minutes and MM means months. I ran this test snippet and it works as expected:

string format = "dd.MM.yy";
string date = "27.10.11";
DateTime result;
result = DateTime.ParseExact(date, format, CultureInfo.InvariantCulture);