Home > Entity Framework > Ef Include Not Working

Ef Include Not Working


Expressionobject>> work well for me. What is this line of counties voting for the Democratic party in the 2016 elections? But first let's briefly describe what affects the performance of an EF query. For example, if "entity" add a property called Member with the cardinality of 1 and Member had a property called Items with a cardinality of many, you could do this: from Check This Out

Quine Anagrams! (Cops' Thread) Hotels on the Las Vegas strip: is there a commitment to gamble? Lab colleague uses cracked software. The example I was working on is: var theRelease = from release in context.Releases where release.Name == "Hello World" select release; var allProductionVersions = from prodVer in context.ProductionVersions where prodVer.Status == What am I doing wrong?

Entity Framework Include Doesn T Work

Results on wlan Method / iteration Load all Filtered by gender Filtered by name Include / 1 287ms 68ms 42ms Include / 2 65ms 45ms 9ms Include / 3 59ms 36ms There are a few alternatives but basically all comes back to splitting the loading into multiple queries. share|improve this answer answered Apr 18 '15 at 2:24 parliament 6,7931480141 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign

  1. Alex Reply Phil says: August 17, 2009 at 5:54 am I've got some code that makes a call to a sproc and returns a collection of entities with a subsequent loop
  2. Previous examples of large scale protests after Presidential elections in US?
  3. Try something like this: var products = db.Products .AsNoTracking() .Where(p => p.CategoryId == category.Id && p.Active && !p.Deleted && p.ProductOptions.Any(po => po.Active && !po.Deleted)) .Select(p => new { product = p,
  4. Effect of bootstrapping in amplifier circuit What is the more appropriate adjectival form of Trump?
  5. And I'm doing this .Include(x => x.Topics.Select(p => p.Posts.Select(u => u.User))) ...
  6. There are some alternatives to the second one, like packing the 3 queries into a single query with multiple resultsets which might be a bit faster but it's the same approach

Can leaked nude pictures damage one's academic career? the method above it works fine: public IEnumerable GetAll(string include) { return this.dbEntitySet.Include(include); } To call it, I basically do this: var a = this.Repository.GetAll(new string[] { "ForbiddenUsers", "ForbiddenGroups" }).ToList(); which Do you still gain the magical benefits of a shield when wearing but not wielding it? Entity Framework Include Example So how do EF load that data in one query?

Music notation software for ubuntu Is there a way to block an elected President from entering office? Entity Framework Include Null Solve using Cauchy Schwarz Inequality What is the more appropriate adjectival form of Trump? This means if you only return a few rows and the root entity doesn't contain heavy data you can keep using include which is much faster to code. Depending on the query, these Includes may be dropped.

Would you just iterate over the 'mails'? Entity Framework Dbset Include you are right. This works just fine, because between when the include is applied and the end of the query the shape remains the same. How do I handle this?

Entity Framework Include Null

Curtis 02 jan 02:18 2014 Funny, was just going to look into this very thing this morning and then Julie Lerman retweeted your link. get redirected here See this Tip 1 in my EF Tips series for more information. Entity Framework Include Doesn T Work asked 7 years ago viewed 42952 times active 2 years ago Upcoming Events 2016 Community Moderator Election ends in 9 days Linked 1 Entity Framework: Include and Explicitly defined foreign keys Entity Framework Include Lambda Not Working What does a white over red VASI indicate?

This work by Shawn Wildermuth is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License . There are 2 major factors that helps include on this dataset. 1) In average each contact has about one email and one phonenumber which means that in average we will get However if you start to do more interesting queries that change the ‘shape’ of the query, either by introducing an intermediary join or something, maybe like this: var results= frompost up vote 17 down vote Try this: var query = (ObjectQuery)(from e in dc.Entities join i in dc.Items on e.ID equals i.Member.ID where (i.Collection.ID == collectionID) select e) return query.Include("Properties") share|improve Entity Framework Include Not Working Child Object

How to find x and y coordinates based on the given distance? Pick Randomly Between -1 or 1 Quine Anagrams! (Cops' Thread) Staying on track when learning theory vs learning to play I used a solution that I happened to already have on Coworker throwing cigarettes out of a car, I criticized it and now HR is involved How do unlimited vacation days work? this contact form The test data set and queries That's the model.

var qry = from e in ctx.Events where e.EventDate >= DateTime.Today select e; List results = qry.Include("Workshop").ToList(); You can find the EFExtensions at the MSDN Code site here: http://code.msdn.microsoft.com/EFExtensions Has this Entity Framework Include Multiple Levels Oct 9 '14 at 10:15 Sorry, yes I mean Load() method. –Masoud Oct 9 '14 at 10:42 add a comment| Your Answer draft saved draft discarded Sign up A horrible, but not uncommon, way to do it was to load all contacts and then loop over them and for each contact load the releated phone numbers and emails.

To further Clarify..

more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Not so clear how you would do that huh? Thnx Reply Follow UsPopular TagsEF Tips Entity Framework Tricks EDM C# Data Services Metadata EF 4.0 Community DSP Object Services Astoria Philosophical Ramblings LINQ to Entities LINQ OData Samples Expressions Archives Iqueryable Include That is ugly and if you don't understand it I will not blame you.

In code included in my answer, MyComplexType.Author will be correctly loaded (no need to use any Includes). What is the most someone can lose the popular vote by but still win the electoral college? The reason we didn't load the data in a single query before ORMs is because relational databases is not built to return hierarchial data. navigate here What power do I have as a driver if my interstate route is blocked by a protest?

So to access existingUserTopic.Topic in my code, I have to do it before marking existingUserTopic deleted. Pretty nice for the developer! i.e. But imagine you were going to parse the 3 rows above into one entity.

share|improve this answer answered Apr 13 '13 at 17:17 Akli 496413 that helped me thanks :p –Pascal Dec 13 '13 at 12:13 5 To make that better, you Thanks for taking the time to put this together! What about my query is causing this thing to not work? What is going on here is that EF joins ContactInformations against ContactInformationPhonenumbers and ContactInformationMails and combine this into one large table.

Antispam: Type: Mikael WSW33 - IUSR_689 - © 2009 - 2016 Mikael Eliasson Username: Password: If I have this query, it works as expected. I've removed that second example. –luksan Jan 16 '14 at 15:57 add a comment| up vote 1 down vote This code is incorrect: public IEnumerable GetAll(string[] includes) { foreach (var include more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation

The two scenarios I see this most often are the grouping and subselects:// Drops the Include var qry = from e in ctx.Events .Include("Workshop") where e.EventDate >= DateTime.Today group e by I love the idea, but the execution doesn't seem to be usable at the moment. Thanks, Simon Reply Alex D James says: June 4, 2009 at 12:25 am Simon, We have definitely been talking about it, but it is too early to tell whether it will c# entity-framework eager-loading share|improve this question edited Jan 15 '14 at 16:40 rae1 5,06531836 asked Jan 15 '14 at 16:28 r3plica 2,40842568 +1 for the GetAll method idea!

Filtered by gender it's 388 and filtered by name it's 5 contacts. Not the answer you're looking for? Definitely going to need to remember this for when I'm dealing with large data sets! Workaround The workaround is actually pretty simple, you just move the Include to the end of the query.

Also, I question why you are using join at all; navigation properties are generally the correct way to traverse relationships in the Entity Framework. –Craig Stuntz Apr 27 '09 at 17:36 more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed