public static DateTime ToDateTime(this string value)
 {
     if (!string.IsNullOrWhiteSpace(value))
     {
         return(TimestampConverter.FromDatabase(value));
     }
     return(DateTime.Now);
 }
 public static DateTime?ToNullableDateTime(this string value)
 {
     if (!string.IsNullOrWhiteSpace(value))
     {
         return(TimestampConverter.FromDatabase(value));
     }
     return(null);
 }