Storing TimeSpan with Entity Framework Codefirst - SqlDbType.Time overflow

Question

I\'m trying to seed some constants into my DB:

context.Stages.AddOrUpdate(s => s.Name,
                                   new Stage()
                                


        

Answer 1

The problem, as previously mentioned, is the fact that EF maps the TimeSpan class to Time, which is limited to 24 hours.

If you need to store a timespan of greater than 24 hours, I would suggest one of the following two approaches:

1) Create a TimeSpan entity with int properties for the different elements of a timespan, something like:

 public class Timespan
{
    public Int64 Id { get; set; }

    public Int16 Years { get; set; }

    public int Months { get; set; }

    public Int64 Days { get; set; }

    public Int64 Hours { get; set; }

    public Int64 Minutes { get; set; }
}

Simply add a foreign reference in the applicable entity to your custom Timespan entity.

2) Do some silly time-to-ticks conversion, as explained in this blog post.