View files are saved with the extension .cshtml, which implies that these are files containing both HTML markup and C# code.

They are located within subfolders under the Views folder. By convention, each subfolder matches a single controller. For example, if the project has a controller named HomeController, then the views of this controller will reside inside the Views/Home folder.

The view's filename correlates to the controller action for which it generates the output. We saw in the previous section that the controller action ended with this line:

return View();

This line tells ASP.NET Core MVC to look for a file named <current action name>.cshtml under Views/<controller name>. For example, if the controller is named HomeController and the action is named Index, then the view file will be Views/Home/Index.cshtml.