String.Format DateTime value in decreasing number format c#?

Question

DateTime input = DateTime.Now; //06/02/2011 04:05:07 PM
expectedOutput string = "20110602040507";

I want to get the above output string based on date following this ( year,month,day,hour,minute,second) pattern.

Answer 1

You need the format string "yyyyMMddHHmmss", which will give hours in 24-hour format.

DateTime.Now.ToString("yyyyMMddHHmmss");

Answer 2

Use DateTime.ToString method:

String format = "yyyyMMddHHmmss";
String formattedValue = input.ToString(format);