Razor syntax-based pages have been introduced in ASP.NET Core. Now, developers can develop applications and write syntax on the HTML with no controller in place. Instead, there is a code behind file where other events and logic can be handled. The backend page class is inherited from the PageModel class and its member variables and methods can be accessed using the Model object in Razor syntax. The following is a simple example that contains the GetTitle method defined in the code-behind class and used in the view page:

public class IndexModel : PageModel 
{ 
  public string GetTitle() => "Home Page"; 
}

Here is the Index.cshtml file that displays the date by calling the GetCurrentDate method:

@page 
@model IndexModel 
@{ 
  ViewData["Title"] = Model.GetTitle(); 
}