c# - How to convert any date format to yyyy-MM-dd

Question

My app parses a string data, extracts the date and identify the format of the date and convert it to yyyy-MM-dd.

The source date could be anything lime dd-mm-yyyy, dd/mm/yyyy, mm-dd-yyyy, mm/dd/yyyy or even yyyy-MM-dd.

Other than attempting different permutations and combinations using switch case, is there any other efficient way to do it?

string sourceDate = "31-08-2012";
String.Format("{0:yyyy-MM-dd}", sourceDate);

The above code simply returns the same sourceDate "31-08-2012".

Answer 1

string DateString = "11/12/2009";
IFormatProvider culture = new CultureInfo("en-US", true); 
DateTime dateVal = DateTime.ParseExact(DateString, "yyyy-MM-dd", culture);

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