"..." cannot implement an interface member because it is not public

c#, dbcontext, entity-framework

Solution

However, this makes no sence since the interface obviously IS public. What could be the error here?

No, it isn't. Members on classes are `private` by default. This `Entities1` is private:

public class MyDbContext : DbContext, IDatabaseContext {    
    IDbSet<MyEntity1> Entities1 { get; set; }    
}

Note that this is different to `interface`s, where everything is `public` and access modifiers do not make sense. So: either make the member `public`:

public class MyDbContext : DbContext, IDatabaseContext {    
    public IDbSet<MyEntity1> Entities1 { get; set; }    
}

or do an explicit interface implementation:

public class MyDbContext : DbContext, IDatabaseContext {    
    IDbSet<MyEntity1> IDatabaseContext.Entities1 { get; set; }    
}

Problem

Original source

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