Question

c# ToFileTime convert to datetime string code?

130038578286868465 convert to datetime string (“yyyymmdd H:i:s”)

Answer 1

You can use DateTime.FromFileTime. In format string use MM or M for month or mm or m for minutes.

 long ft = date1.ToFileTime();
 DateTime date2 = DateTime.FromFileTime(ft);
 string dateString =  date2.ToString("yyyyMMdd H:m:s"); 

Or

string dateTime = DateTime.FromFileTime(130038578286868465).ToString("yyyyMMdd H:m:s");

Edit: To data table cell value, FromFileTime takes long to we have to convert string to long

DateTime.FromFileTime(long.Parse( row["workStartDateTime"].ToString())).ToString("yyyyMMdd H:m:s");