相关疑难解决方法(0)

我想将值传递给DbContext的ctor,然后让该值对相关的DbSets强制执行"过滤".这可能......还是有更好的方法？

代码可能如下所示:

class Contact {
  int ContactId { get; set; }
  int CompanyId { get; set; }
  string Name { get; set; }
}

class ContactContext : DbContext {
  public ContactContext(int companyId) {...}
  public DbSet<Contact> Contacts { get; set; }
}

using (var cc = new ContactContext(123)) {
  // Would only return contacts where CompanyId = 123
  var all = (from i in cc.Contacts select i);

  // Would automatically set the CompanyId to 123
  var contact = new Contact { …