How can I format a nullable DateTime with ToString()?

Question

How can I convert the nullable DateTime dt2 to a formatted string?

DateTime dt = DateTime.Now;
Console.WriteLine(dt.ToString(\"yyyy-MM-dd hh         


        

Answer 1

The problem with formulating an answer to this question is that you do not specify the desired output when the nullable datetime has no value. The following code will output DateTime.MinValue in such a case, and unlike the currently accepted answer, will not throw an exception.

dt2.GetValueOrDefault().ToString(format);