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0 VotesWorking with detached objects (in-memory context)
. navigation properties). And work with this context should be organized somehow like this: I query objects from EF context, detach all the entities and ...Unanswered | 3 Replies | 5382 Views | Created by Radik Salakhov - Tuesday, December 2, 2008 1:58 PM | Last reply by Radik Salakhov - Tuesday, December 2, 2008 6:11 PM
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Attach - Assign - Detach
to this, and was quite surprised to find that the following worked: 1) query the table and materialise into a List(Of Entity), then detach each entity in the ... -
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Tree traversal: Prevention of memory exhaustion
be approrpriate for Detach are situations much like you describe where the user has a long-running context but knows that they are done working with a particular ...Answered | 2 Replies | 4561 Views | Created by Henrik Dahl - Tuesday, October 2, 2007 2:37 PM | Last reply by Henrik Dahl - Monday, October 8, 2007 1:19 PM -
1 Votes
Entity Framework 4.0: what is guidline for handling ObjectContext life time?
working with long-running object context consider the following:Answered | 2 Replies | 6376 Views | Created by JJChen - Wednesday, January 12, 2011 10:19 PM | Last reply by Alan_chen - Thursday, January 13, 2011 1:37 PM -
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EntityReference returning stored entity not null when the referenced row does not exist
; The work around would be to detach the entities from the context but this would require me to manually do this at each use of invoice oustanding ... -
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Adding a detached object to a context
There are two ways of adding an object to a context: context.AddObject() and context.EntitySet.AddObject(). Any guidelines when to prefer to use one over the other? ...Answered | 3 Replies | 2939 Views | Created by stratoblue - Thursday, April 28, 2011 5:20 PM | Last reply by Fly_fish - Wednesday, May 4, 2011 7:21 AM -
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The easiest way to detach objects from context and keep relationships (navigation properties)
-objects only in memory they shoud be detached from the ObjectContext and attached to some my "In-memory" ...Proposed | 9 Replies | 10606 Views | Created by Radik Salakhov - Tuesday, December 9, 2008 6:27 PM | Last reply by Yann Duran - Saturday, February 7, 2009 2:17 AM -
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Working with detached objects
, this is not a EF only problem, it has to do with transmitting object graphs over the wire and is equally true with other OO technologies. What you need is to find a way to send the change ...Unanswered | 2 Replies | 4047 Views | Created by Eugene Kiba - Thursday, October 16, 2008 12:11 PM | Last reply by Eugene Kiba - Thursday, October 16, 2008 1:52 PM -
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Working with detached entities in many contexts
object from a call into my middle tier using a (now dead) context object. Question 1) Should I have ...Answered | 3 Replies | 5310 Views | Created by Vincent Grondin - Thursday, June 26, 2008 12:56 AM | Last reply by simmdan - Thursday, June 26, 2008 6:29 AM -
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Contexts, attaching, detaching...
the "Save" button is pressed, EF tries to also save the Order - which is something I don't want. I just want the Article persisted. I tried detaching the Order ...Answered | 1 Replies | 1749 Views | Created by hjf2011 - Wednesday, October 19, 2011 5:01 AM | Last reply by Alan_chen - Friday, October 21, 2011 7:19 AM -
1 Votes
Why EF work with detached objects so inefficient?
projects, which do the same. But first project uses the EF context and attached to it entities. The Second project don't use the context. It works with detached ...Unanswered | 1 Replies | 3681 Views | Created by Radik Salakhov - Wednesday, December 3, 2008 2:29 PM | Last reply by Jaroslaw Kowalski - MSFT - Wednesday, December 3, 2008 6:28 PM -
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How heavy-weight is a EF-context?
working with long-running object context consider the following:Answered | 4 Replies | 4236 Views | Created by RüdiActivity - Tuesday, September 28, 2010 7:22 PM | Last reply by Julia Kornich - Thursday, September 30, 2010 3:03 PM -
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Entity Framework - working with in memory context
() or .TableName.AddObject() (I have tried both) 3. Query these tables from the data context object but have it now also include the in memory additions ...Answered | 3 Replies | 2466 Views | Created by IWolbers - Tuesday, January 29, 2013 1:11 AM | Last reply by IWolbers - Tuesday, January 29, 2013 6:07 PM -
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ObjectContext.ExecuteStoreQuery produces detached objects
and their EntityKey is null. This creates a number of issues when trying to work on some of these objects or their relationships. My SQL query returns a result set containing all ...Answered | 1 Replies | 4303 Views | Created by Sorin Peste - Thursday, February 4, 2010 4:26 PM | Last reply by Sorin Peste - Thursday, February 4, 2010 4:53 PM -
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Context and Context bound objects
Hi, 'Objects that reside in a context and are bound to the context rules are called context-bound objects. A context is a set ...Answered | 1 Replies | 2992 Views | Created by Deepak Gera - Thursday, December 4, 2008 8:56 AM | Last reply by Harry Zhu - Monday, December 8, 2008 4:03 AM -
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memory device context and device context
A device context is a structure that defines a set of graphic objects and their associatedAnswered | 3 Replies | 1037 Views | Created by MRUTYUNJAYA.M - Wednesday, August 21, 2013 6:26 PM | Last reply by Anna Cc - Friday, August 23, 2013 9:15 AM -
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How to release memory from released object contexts
cleaned up when you're done with them! As a result, each time I used a new object context instance, more memory would get consumed and never get released. A ...Answered | 1 Replies | 5361 Views | Created by scH4MMER - Thursday, January 22, 2009 11:08 PM | Last reply by scH4MMER - Monday, January 26, 2009 7:24 PM -
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Include lost after detaching
Mujinja First, what is the reason that you are detaching the items from the context? Is it because you want the objects to stay in memory? If ...Answered | 6 Replies | 3881 Views | Created by Mujinja - Thursday, March 19, 2009 2:03 PM | Last reply by Ricardo Andreatto - Friday, March 27, 2009 7:42 PM -
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Clone detached objects
the object's properties and copy them, but this will require you to write some graph work (recursive iteration through entities), which makes the serialize/deserialize a more ...Proposed | 2 Replies | 3841 Views | Created by Ivan Makarevich - Wednesday, May 6, 2009 7:49 AM | Last reply by Ivan Makarevich - Wednesday, May 6, 2009 11:30 AM -
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Update relation without requerying db
. The problem with a short lived context is you have to worry about reattaching detached graphs (which is near impossible), and the problem with long lived contexts is ...Unanswered | 1 Replies | 3441 Views | Created by Ryan B B - Monday, January 5, 2009 6:54 PM | Last reply by Ryan B B - Tuesday, January 6, 2009 4:12 AM - Items 1 to 20 of 1692727 Next ›
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