In my ASP.NET MVC 2 project I'm trying to call a stored procedure from EF, the problem is after I followed the directions here (went this route because there's nothing in the model that maps to this stored procedure so I added 2 entities for the 2 stored procedures) I get this error:
GCTModel.msl(3,4) : error 3027: No
mapping specified for the following
EntitySet/AssociationSet -
GalleryAnimalLists, GalleryImages.
Now, since I had to add manual entities to map these SP's to how do I get rid of this error message? And ideas on what I'm doing wrong here, or is this post on his blog just wrong for MVC 2?
I ended up deleting the hand rolled entities I created for the function imports and created 2 complex types and mapped the function imports to those and it works perfectly. Just thought I'd share the solution I came up with in case someone came along with a similar issue
Related
Im working with EF4 and started mapping my classes manually i have a function in the postgres side which receives 3 parameters (all string),and returns me a list,havent found any example how to do so considering the entity frame work 4,any help?
I created a new project and added an empty data model. I added a few entities and properties and then generated the database according to this tutorial. So far, so good. I then went back and added additional entitities.
Now, I am no longer able to Generate Database From Model... because I receive an Error 11007: Entity Type 'xxxx' is not mapped for all of the new entities I added. According to msdn, I can follow the instructions here to resolve my mapping issue between conceptual and storage models. However, it appears these instructions assume the entities are already present in my storage model (which they are not). When I try to manually map them, the only two tables I have to choose from are the original two tables I created.
I appreciate any help you can offer.
This was a phantom error of sorts. I had another error with a default value I was trying to set for a datetime that appeared at the bottom of my error list. I resolved this error and everything is now working as it should.
I'm using VS 2008 with SP1. I want to use SP in the entity framework. The problem is that my SP returns more than 1 result set. How do I get the multiple result sets? All the online examples are showing single result. Please help me.
Entity Framework unfortunately does not support multiple result sets from stored procedures - not even in the .NET 4 release.
You will need to either rewrite your stored procs, or access them using standard, bare-bones ADO.NET - and ask Microsoft for support for multiple SP result sets in EF 5 !! I'll cast my vote in favor, too!
Related to this question:
Entity Framework - get records in multiple tables using stored procedure
Another SO user reports success with a plugin project, EF Extensions.
As marc_s describes, the feature is not built in to EF... another reason for DBA Developers to shy away from EF, imho.
I am experiencing the following error when I try to assign a new reference to a navigation property. So far, all of my searching has not really turned up anything useful, so I was wondering if I might get any help from SO on this.
Metadata information for the
relationship
'CustomerModel.FK_Execution_ClientBlock'
could not be retrieved. Make sure that
the EdmRelationshipAttribute for the
relationship has been defined in the
assembly
What is strange is that all of my code works. This is only occurring during a unit test. I assume it's because I'm using a mocking framework (MOQ) to mock up this particular EF object.
We're using the version of EF that comes with .net 3.5 if that helps.
I have previously had a similar problem, in my case the solution was this: MetadataException when using Entity Framework Entity Connection
Basically you need to add the name of the dll to the metadata connection string
I'm working on a C#.NET 3.5 WCF RIA Services app and having an issue with my Entity Framework model.
My entity Foo is mapped to a DB table and has a primary key called FooId. My Bar is mapped to a DB view. I've selectively designed this view to generate a composite key in the EF using two of the columns (by making sure they were non-nullable and the others are all nullable. This was done using NULLIF and ISNULL in the view design.)
I'm able to add this view to the model with no problem but I keep running into an issue when I try to map an association between the two. Foo should contain many Bars but I keep getting the following error when I add the association:
Unable to retrieve AssociationType for
association 'FK_Bar_Foo'
According to this page, it looks like this might work if I can properly name the association (since RIA Services looks for specific names.) I've tried several variants of names that match the pattern of other associations with no success. Does anyone know if there's a place I can look to find out what name it's looking for?
Thanks,
After some research I found a workaround to the issue here. The problem with this solution is that you have to repeat it every time the model is updated, which just won't work for me. It appears the current version of the EF doesn't support this type of relation.
The solution I finally went with was to redesign the client to independently call the service and request an entity collection by passing the primary key (FooId) of my Foo type. It's not the best approach (and requires a lot more manual coding) but it does the job. I hope Entity Framework version 4 solves this limitation.