Entity Framework cannot access entity classes

Question

I have used Entity Framework for DAL in a few projects but in the one I'm working on right now, I have the edmx file in a class library project and that's all there is in the project. I have this project referenced in another class library project and for some reason I'm not able to access any of the entity classes that are defined in the .designer.cs file. I can't access the context class either. If i look at the referenced project in Object viewer in visual studio, it does not list any entities for this project.

Does anyone know why I'm not able to access the entity classes or the datacontext in another project?

EDIT: If it makes any difference, it's associated with a database on sql azure.

Won DA · Accepted Answer · 2011-09-25 04:51:47Z

1

This is can happen into two different ways. One is to make sure the Entity Model class are public. The other is to check the Entity Model Namespace is matches to the Context class.

answered Sep 25, 2011 at 4:51

Won DA

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Professor Chaos Over a year ago

All the entity classes are public.And it's not the namespace either. Even if i created a class inside the designer.cs right below an entity class, I still cannot access that entity or context from there. I even tried refreshing and updating the edmx file.

Professor Chaos · Accepted Answer · 2011-09-29 21:38:45Z

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I was able to resolve it by deleting the existing edmx file and regenerating a new one.

Apparently the old one got into a weird state, I was not able to figure out how to get it to work again.

answered Sep 29, 2011 at 21:38

Professor Chaos

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Comments

bharath · Accepted Answer · 2012-02-16 06:49:53Z

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I have used Entity Framework for DAL in a few projects but in the one I'm working on right now, I have the edmx file in a class library project and that's all there is in the project. I have this project referenced in another class library project where i was not able to initialize the object for the entity class saying connection string was not set ,where i have checke with the connection string which was there.\

answered Feb 16, 2012 at 6:49

bharath

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Mauri Chamorro · Accepted Answer · 2017-09-22 00:24:09Z

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check your inherited class of DbContext, it must be public

answered Sep 22, 2017 at 0:24

Mauri Chamorro

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Mauri Chamorro Over a year ago

Also, you can add the attribute to namespace that you want it be visible: [assembly: InternalsVisibleTo("ProyectName or namespace")]. You need aggregate using directive: using System.Runtime.CompilerServices; for example: using System.Data.Entity; using System.Runtime.CompilerServices; [assembly: InternalsVisibleTo("OtherProyect")] namespace Persistence.DAL.EntityFramework { internal class HotelContext:DbContext { // code } }

Jayantha Lal Sirisena · Accepted Answer · 2011-09-25 04:12:06Z

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Check the Namespaces of the Context class and Designer.cs class.

answered Sep 25, 2011 at 4:12

Jayantha Lal Sirisena

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2 Comments

Professor Chaos Over a year ago

Nope. it's not the namespace. Even if i created a class inside the designer.cs right below an entity class, I still cannot access that entity or context from there. I even tried refreshing and updating the edmx file.

Jayantha Lal Sirisena Over a year ago

Make sure the namespace and the context class name is not the same.

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