Creating a modular ASP.NET Core application

What you will build

You will build an application that is made of modules. The module will provide a Controller and a View while the Layout will be provided by the main application project.

What you will need

Creating an Orchard Core site and module

There are different ways to create sites and modules for Orchard Core. You can learn more about them here. In this guide we will use our "Code Generation Templates".

You can install the latest released templates using this command:

dotnet new -i OrchardCore.ProjectTemplates::1.0.0-*


To use the development branch of the template add --nuget-source

Create an empty folder that will contain your site. Open a terminal, navigate to that folder and run this:

dotnet new ocmvc -n MySite

This creates a new ASP.NET MVC application in a new folder named MySite. We can now create a new module with the following command:

dotnet new ocmodulemvc -n MyModule

The module is created in the MyModule folder. The next step is to reference the module from the application, by adding a project reference:

dotnet add MySite reference MyModule

Testing the resulting application

From the root of the folder containing both projects, run this command:

dotnet run --project .\MySite\MySite.csproj


If you are using the development branch of the templates, run dotnet restore .\MySite\MySite.csproj --source before running the application

Your application should now be running and contain the open ports:

Now listening on: https://localhost:5001
Now listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.

Open a browser on https://localhost:5001/MyModule/Home/Index It should display Hello from MyModule

The Layout is coming from the main application project, while the controller, action and view are coming from the module project.

Registering a custom route

By default all routes in modules are modeled like {area}/{controller}/{action} where {area} is the name of the module. We will change the route of the view in this module to handle the home page.

In the Startup.cs file of MyModule, add this code in the Configure() method.

        name: "Home",
        areaName: "MyModule",
        template: "",
        defaults: new { controller = "Home", action = "Index" }

Restart the application and open the home page, which should display the same result as with the previous url.


You just created an ASP.NET Core application with a module containing a Controller and a View.