Entity Framework 4 + POCO with custom classes and WCF contracts (serialization problem)
- by eman
Yesterday I worked on a project where I upgraded to Entity Framework 4 with the Repository pattern. In one post, I have read that it is necessary to turn off the custom tool generator classes and then write classes (same like entites) by hand. That I can do it, I used the POCO Entity Generator and then deleted the new generated files .tt and all subordinate .cs classes. Then I wrote the "entity classes" by myself.
I added the repository pattern and implemented it in the business layer and then implemented a WCF layer, which should call the methods from the business layer. By calling an Insert (Add) method from the presentation layer and everything is OK. But if I call any method that should return some class, then I get an error like (the connection was interrupted by the server).
I suppose there is a problem with the serialization or am I wrong? How can by this problem solved?
I'm using Visual Studio S2010, Entity Framework 4, C#.
UPDATE:
I have uploaded the project and hope somebody can help me! link text
UPDATE 2:
My questions:
Why is POCO good (pros/cons)?
When should POCO be used?
Is POCO + the repository pattern a good choice?
Should POCO classes by written by myself or could I use auto generated POCO classes?
