c# - Convert string containing a date in multiple formats to a string containing a date in the "CCYYMMDD" format -

i have string contains date , time. date in of following formats:
"m/d/yyyy" or "mm/d/yyyy" or "m/dd/yyyy" or "mm/dd/yyyy".
and time either in:
"hh:mm:ss" or "h:mm:ss".
the string retrieved sql server in c# code.

how convert string containing date in format "ccyymmdd"?

        var inputdate = "4/28/2006 12:39:32:429am";          //1 - parse date parts         char[] delimiterchars = { '/' };          string[] dateparts = inputdate.split(delimiterchars);         var month = int.parse(dateparts[0].tostring());         var day = int.parse(dateparts[1].tostring());          var year = 0;          string yearstring = dateparts[2].tostring();          //strip of time year part         if (yearstring.length > 5)             year = int.parse(yearstring.substring(0, 4));          //2 - create date object         datetime testdate = new datetime(year, month, day);          //3 - format date         var outputdate = testdate.tostring("yyyymmdd");          console.writeline("input date: " + inputdate);         console.writeline("output date: " + outputdate);          console.readline(); 

you can refer msdn formatting dates here . may want validation ensure you're getting valid date sql server.