Convert DateTime to long and also the other way around

Question

I want to store dates as numbers in a table. I know how to do that but I don\'t know how to go back. How can I cast a long variable to ToDateTime.

DateTime n         


        

Answer 1

There are several possibilities (note that the those long values aren't the same as the Unix epoch.

For your example (to reverse ToFileTime()) just use DateTime.FromFileTime(t).