How to register multiple implementations of an interface with the IoC container in ASP.NET Core and retrieve a specific service at runtime.

Take advantage of the friendly syntax of Razor View Engine to more easily create views from templates in ASP.NET Core MVC.

An HTML Helper is a bit of Razor code that can be called from multiple places in a View. But, if you put your Helper in the right place, you can also use it from any View in your application.