Entity Framework vs. AssociateWith

问题:

When I use Linq2Sql I can filter a table by using a lambda-expression in the DataLoadOptions.AssociateWith method.

I use this for filtering the used language - so I have a language table with all languages and a object table containing objects.

Like:

DataLoadOptions opt = ...;
opt.AssociateWith<DB.Objects>(o => o.Language.Where(p => p.Culture == CurrentUser.Culture));

How to do that with the entity-framework - where I have to use .Include(string) instead of the dataloadoptions?

回答1:

Can you please let us know which version of EF you are using.

But saying that you want to use the "include" method, then it would probably look like this.

var result = dbContext.Objects.Include("Language").Where(p=>p.Culture == CurrentUser.Culture );

note that "Language" should reflect what is set in your navigation property name in your model. (so watch out for plurals)