c# - EF 5 cast a ICollection into another -


I have a component that accepts two types of data sources 

  Public Interface Ia .. Icons & lt; Ib & gt; Expansion {Received; Set; }} Public Interface IB {....}   
 Then I have two EF classes that implement the interface  
  Public class B: IB { }   
 And my problem here is how to expand MyDetail in MyDetail by expanding and expanding, I use MyDetail for detail in the  
  public class a: Ia {public virtual Ichlanack & lt; B & gt; MyDetail {get; set;} // How to expand MyDetal to detail and expand on MyDetail / some public virtual Icicle & lt; Ib & gt; Expansion {get {return MyDetail;} set {MyDetail = value}}}}   
 Is that correct? Is there another incomplete for this conversation?   
 
 
 You can not do this  Icoding  is not coherent, so you can  Icon ; As  Icoding   Ib & gt;  (in the recipient), and can not treat the nutrients, so you can  the icon  Icoding   B & gt;  (in setter) can not be treated.  Icoding & lt; T & gt;  is  irreversible  (Note that it is impossible for any kind of nutrient and sect ever.  
 It is best for your recipient to do that Make a new collection and copy all the elements. You know that it will be successful, but you need to make a copy.  
 For your setter, you will also need to create a new collection , But here you have all the items Ms has no idea that in fact  b  objects, so you have to know how to handle any handle (whether you release them, throw exceptions, or what).

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