DevForce Community Forum : Collection modified error http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : Collection modified error Mon, 13 Apr 2026 05:27:27 -700 Fri, 08 Jul 2011 12:20:35 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=2816 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Collection modified error : Hi midnit,Please disregard... http://www.ideablade.com/forum/forum_posts.asp?TID=2816&PID=11206#11206 Author: sbelini
Subject: 2816
Posted: 08-Jul-2011 at 12:20pm

Hi midnit,
 
Please disregard my previous post. I was able to reproduce it here and will file a bug.
 
Silvio.
]]> Fri, 08 Jul 2011 12:20:35 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2816&PID=11206#11206 Collection modified error : midnit,Can you upload a sample... http://www.ideablade.com/forum/forum_posts.asp?TID=2816&PID=11203#11203 Author: sbelini
Subject: 2816
Posted: 08-Jul-2011 at 10:31am

midnit,
 
Can you upload a sample reproducing the problem?
 
Silvio.
]]> Fri, 08 Jul 2011 10:31:01 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2816&PID=11203#11203 Collection modified error : I ran into an error I was not... http://www.ideablade.com/forum/forum_posts.asp?TID=2816&PID=11194#11194 Author: midnit
Subject: 2816
Posted: 07-Jul-2011 at 6:41am

I ran into an error I was not expecting and though I can prevent it I thought maybe it at least shouldn't blow up with this error...
 
I have an entity ContactBa that has a relationship with Contact which has a relationship with Department. When I create a new ContactBa it of course has no Contact which of course has no Department, but if the UI is bound to ContactBa.Contact.Department.Name...I get a collection modified error thrown. I presume its trying to "get" (lazily?) the Contact and Department but of course there is nothing if I justed create the ContactBa entity on the client. Turning off lazy loading did not prevent the error so...maybe its something else. If I remove the UI binding I do not get the error when I add a new ContactBa.
 
Collection was modified; enumeration operation may not execute.    at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
   at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
   at System.Collections.Generic.List`1.Enumerator.MoveNext()
   at System.Linq.Enumerable.WhereListIterator`1.MoveNext()
   at IdeaBlade.Core.EnumerableFns.ForEach[T](IEnumerable`1 items, Action`1 action)
   at IdeaBlade.EntityModel.PendingEntityMap.Update(EntityWrapper pendingWrapper, EntityWrapper realWrapper)
   at IdeaBlade.EntityModel.ScalarEntityReference`1.InformPendingEntityOfRealEntity(EntityWrapper realEntity)
   at IdeaBlade.EntityModel.ScalarEntityReference`1.QueryCallback(EntityQueryOperation op)
   at IdeaBlade.EntityModel.BaseOperation`2.OnCompleted()
   at IdeaBlade.EntityModel.BaseOperation`2.IdeaBlade.EntityModel.IHasAsyncEventArgs.OnCompleted()
   at IdeaBlade.EntityModel.AsyncProcessor`1.<>c__DisplayClass2.<.ctor>b__0(TArgs args)
   at IdeaBlade.EntityModel.AsyncProcessor`1.Signal()
   at IdeaBlade.EntityModel.AsyncProcessor`1.<Execute>b__5(Object x)


Edited by midnit - 07-Jul-2011 at 6:41am]]> Thu, 07 Jul 2011 06:41:01 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2816&PID=11194#11194