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Create New Entity when using Multiple EntityManagers
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cjohnson84 View Drop Down
Groupie
Groupie


Joined: 24-Sep-2009
Location: Akron, Ohio
Posts: 44 		Post Options Post Options   Quote cjohnson84 Quote  Post ReplyReply Direct Link To This Post Topic: Create New Entity when using Multiple EntityManagers
    Posted: 09-Sep-2010 at 10:19am

We are investigating the use of multiple entity managers in our Silverlight application.

My question is if I want to create a new entity, how do I specify which entity manager to add it to when I call "AddToManager()"?
 
The EntityAspect.EntityManager property is readonly.
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sbelini View Drop Down
IdeaBlade
IdeaBlade
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Joined: 13-Aug-2010
Location: Oakland
Posts: 786 		Post Options Post Options   Quote sbelini Quote  Post ReplyReply Direct Link To This Post Posted: 09-Sep-2010 at 3:53pm
Hi,
 
try using .AddEntity instead:
 
myEntityManager.AddEntity(myEntity);
 
The API documentation states:
The associated EntityManager will either be the EntityManager that was called to create this Entity (M:IdeaBlade.EntityModel.EntityManager.CreateEntity``1) or that was used to generate its ids ( IdeaBlade.EntityModel.EntityManager.GenerateId) If neither of these cases apply, then the EntityManager's DefaultManager"/> will be used. There is no difference between AddToManager and M:IdeaBlade.EntityModel.EntityManager.AddEntity(IdeaBlade.EntityModel.Entity). Use either method to add a business object created by the IdeaBlade.EntityModel.EntityManager.CreateEntity method to the EntityManager cache. The object must have a "detached" IdeaBlade.EntityModel.EntityAspect.EntityState, must not have ever been associated with another EntityManager and must have a unique EntityKey within the EntityManager to which it will be added.
 
I hope it helps,
   Silvio.
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cjohnson84 View Drop Down
Groupie
Groupie


Joined: 24-Sep-2009
Location: Akron, Ohio
Posts: 44 		Post Options Post Options   Quote cjohnson84 Quote  Post ReplyReply Direct Link To This Post Posted: 10-Sep-2010 at 4:28am
Thank you Silvio.  Your suggestion worked.  I was looking at this problem from the wrong point of view.
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