C＃linq：将行从一个表复制到另一个表

Question

I have 2 identical tables. I want to copy some rows from the first table to the other. This is what I have done:

var getTemplate = (from i in dc.Templates where i.Document == tablename select i );

            foreach (var val in getTemplate)
            {
                DAL.Type qt = new DAL.Type();

                qt.col1 = val.col1;
                qt.col2 = val.col2;
                ....
            }

But there are many columns. Is there a way to copy the whole row at once?

Answer 1

Christos is right, automapper is pretty much made for this type of thing. If you don't want to add the dependency to auto mapper or learn it then look at

ConvertAll().

https://msdn.microsoft.com/en-us/library/73fe8cwf(v=vs.110).aspx

Answer 2

I think Automapper will work. If your columns same name, you will get rid of big workload.

You can convert like this;

BankViewModel bank = Mapper.Map<BankViewModel>(BankDto);

And your AutoMapper Initialization;

    public class AutoMapping
    {
        internal static void Init()
        {
             Mapper.CreateMap<BankDto, BankViewModel>()
            .ForMember(dst => dst.Id, opt => opt.MapFrom(src => src.BankId))
            .ForMember(dst => dst.InstitutionBankId, opt => opt.MapFrom(src => src.InstitutionBankId));
        }
    }

Finally you should register your Inıtialization where Application Start in Global.asax.

     protected void Application_Start()
     {
         AutoMapping.Init();
     }

If your columns same name Mapper.CreateMap<BankDto, BankViewModel>() will work.