Linq to sql, copy original entity to new one and save

Question

I have a situation when I cant just update original record in database, but instead make a new record, copy all fields from old and apply changes to new one. (something like

Answer 1

Is it possible to make it work without manually copying every field?

Yes - don't manually copy every field:

You could use AutoMapper.

Set up somewhere (called once at program start):

AutoMapper.Mapper.CreateMap()
// don't map the id to stop conflicts when adding into db
    .ForMember(a => a.Id, a => a.Ignore()); 

Then call:

var newObject = AutoMapper.Mapper.Map(oldObject);