DevForce Community Forum : EntityReferenceBase.Load within a coroutine http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : EntityReferenceBase.Load within a coroutine Sun, 12 Apr 2026 16:52:47 -700 Tue, 30 Nov 2010 12:23:04 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=2327 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ EntityReferenceBase.Load within a coroutine : Hi bebe, Unfortunatelly, you... http://www.ideablade.com/forum/forum_posts.asp?TID=2327&PID=9280#9280 Author: sbelini
Subject: 2327
Posted: 30-Nov-2010 at 12:23pm

Hi bebe,
 
Unfortunatelly, you won't be able to accomplish that with EntityReferenceBase.Load in a coroutine.
 
Is there any particular reason you are using EntityReferenceBase.Load instead of EntityRelationQuery?
You'll be able to complete the same task using EntityRelationQuery with the plus of being able to use it in a coroutine.
 
For instance:
 
  ...
  var regionERQuery = new EntityRelationQuery(territory, EntityRelations.FK_Territory_Region.ToRole2Link);
  var regionQuery = regionERQuery
    .With(myQueryStrategy)
    .ExecuteAsync();
  yield return regionQuery;
  ...
 
Regards,
   sbelini.
]]> Tue, 30 Nov 2010 12:23:04 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2327&PID=9280#9280 EntityReferenceBase.Load within a coroutine : I use manager.UseAsyncNavigation... http://www.ideablade.com/forum/forum_posts.asp?TID=2327&PID=9189#9189 Author: bebe
Subject: 2327
Posted: 22-Nov-2010 at 5:16am

I use
manager.UseAsyncNavigation = true;
manager.DefaultQueryStrategy = QueryStrategy.CacheOnly;

and call
EntityReferenceBase.Load(MergeStrategy mergeStrategy) to load a related entity.

In NorthwindDB this could look like:

var reference = Territory.PropertyMetadata.Region.GetEntityReference(territory);
reference.Load(MergeStrategy.PreserveChanges);

I would like to do this within a coroutine. How can I get informed that the operation is completed (e.g. the Region of the Territory is loaded)?

It would be great if EntityReferenceBase.Load(...) would return a INotifyCompleted. Are there any plans for this feature?


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