Question

I have following code

 using  (AdventureWorksEntities database = new AdventureWorksEntities())

But it is showing that

‘New_WCF_App1.AdventureWorksEntities’: type used in a using statement must be implicitly convertible to ‘System.IDisposable’

How to solve this

Answer 1

Well, the error message is reasonably clear – AdventureWorksEntities doesn’t implement the IDisposable interface. It can’t be disposed, so you can’t use it as the resource in a using statement.

Next you need to work out whether it should implement IDisposable, or whether it really doesn’t have any resources to dispose.

EDIT: According to comments, with Entity Framework 4 this should work without any extra implementation, as the auto-generated code already implements IDiposable.