StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POEntity Framework does not return object
primarykey
Id
3113829
data
AcceptedAnswerId
3114008
AnswerCount
1
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-06-24T20:59:39.087
FavoriteCount
0
LastActivityDate
2010-06-24T21:27:55.477
LastEditDate
2010-06-24T21:12:31.667
LastEditorUserId
278822
OwnerUserId
278822
ParentId
0
PostTypeId
1
Score
0
ViewCount
129
LastEditorDisplayName
text
Body
Hi I found problem with EF. Here is my <a href="http://www.freeimagehosting.net/image.php?66091617f9.jpg" rel="nofollow noreferrer">Model</a> I loaded asset: <pre><code>POCO.Asset asset = _context.Assets.Where(a => a.UID == assetUid).First(); </code></pre> then I go through all properties <pre><code>foreach (POCO.Property p in asset.Properties) /* request to db */ { /*...*/ } </code></pre> categories: <pre><code>foreach (POCO.Category p in > asset.Categories) /* request to db */ { /*...*/ } </code></pre> related assets: <pre><code>foreach (POCO.Relation relatedAsset in entityAsset.Relations) /* request to db */ { /*...*/ } </code></pre> all navigation properties work fine. I can see request to db through profile. everything is good. but if I go through Relations and trying to load RelatedAssetProperties then I have a problem. Basically my Asset has 4 relations and each relation has 2-3 properties. <pre><code>foreach (POCO.Relation relatedAsset in entityAsset.Relations) /* request to db */ { /**/ ICollection<RelatedAssetProperty> rap = relatedAsset.RelatedAssetProperties; foreach (RelatedAssetProperty relatedAssetProperty in rap) /* request to db */ { /**/ } } </code></pre> During RelatedAssetProperties execution I see all 4 requests to db to get properties. I run all requests in SQL manager and each returns data. But for some reason only for first relation rap has items (RelatedAssetProperty). For other Relations it is empty. And I do not know why.
Tags
<.net><entity-framework><ado.net>
Title
Entity Framework does not return object
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USCherven
UserOwnerUserId
1. USCherven
plurals
PostLinksPostIdRelatedPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.