c# - Unexpected DateTime Range Scenario -


i hate dates. i'm maintaining project , came across extension method bit naive, should trick in 99% of cases. checking date range: 

public static bool isinrange(this datetime datetocheck, datetime startdate, datetime enddate) {     if (startdate <= enddate)     {         return datetocheck >= startdate && datetocheck <= enddate;     }      return false; }

so have situation baffling me. return statement in if scope returning true when datetocheck after enddate. see following screen grab debugging values:

enter image description here

i considered fact may have different datetimekind, added following statement ensure both local: 

datetime.specifykind(datetocheck, datetimekind.local)

i unable reproduce in console application.

so guess question is, heck!?

if check datetocheck variable closely, year 1917 smaller 2017(enddate year 2017). so, it's working expected far can see.


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