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Burning Hippo
Burning Hippo

Reputation: 805

Not able to reference namespace from project

I have a few folders inside my interfaces sub project. I can "see" two of them, but not the third. The reference is obviously added, otherwise I wouldn't be able to "see" or access any of the namespaces inside the sub project.

Any ideas what could be wrong here?

missing namespace reference

File ProjectContext.cs from project Project.Data needs to inherit an interface from another project Project.Interfaces.

Project.Data has a reference to Project.Interfaces.

The interface is located in Project.Interfaces\Data\IProjectContext.cs.

For whatever reason the Data directory is not visible in the autocomplete provided by Visual Studio. I am not able to access the Project.Interfaces.Data namespace.

project.json from Project.Data

{
  "version": "1.0.0-*",

  "dependencies": {
"Project.Interfaces": "1.0.0-*",
"Microsoft.EntityFrameworkCore.SqlServer": "1.1.0",
"NETStandard.Library": "1.6.1",
"System.ComponentModel.Annotations": "4.3.0"
},

"frameworks": {
"netstandard1.6": {
  "imports": "dnxcore50"
}
}
}

ProjectContext.cs

namespace Project.Data
{
public class ProjectContext : DbContext
{
    public ProjectContext(DbContextOptions<ProjectContext> options) : base(options)
    {
        Database.EnsureCreated();
    }

}
}

IProjectContext.cs

namespace Project.Interfaces.Data
{
    interface IProjectContext
    {

    }
}

Upvotes: 0

Views: 2408

Answers (2)

Steve
Steve

Reputation: 9561

The default access modifier in c# is internal. Since your IProjectContext interface doesn't have a modifier, it is assumed to be internal and so not available to other projects.

Make the interface public and you will be able to reference it in other projects.

namespace Project.Interfaces.Data
{
    public interface IProjectContext
    {

    }
}

If you want the interface to be internal for API reasons, you can add an InternalsVisibleTo line to the AssemblyInfo.cs file in your Project.Interfaces project:

[assembly: InternalsVisibleTo("Project.Data")]

Upvotes: 3

David S.
David S.

Reputation: 6105

It seems that you have the impression that the folder structure defines the namespaces. They are in fact totally irrelevant (although it's a good convention to follow). Check your files inside the folders that are missing, and change the namespace definition in the code, presumably you want this to match your folder structure.

Another thing to look for is whether the classes /interfaces are public.

Upvotes: 3

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