Part 57 Handling 404 not found in asp net core mvc
Handling 404 Not Found in ASP.NET Core MVC is the architectural practice of intercepting situations where a requested resource cannot be located and returning
a user-friendly response while preserving SEO-compliant HTTP status codes.
The Two Types of 404 ErrorsIn ASP.NET Core MVC, a 404 error typically originates from one of two distinct scenarios:Unmatched URL (Routing Error): The user visits a URL that
does not map to any controller or action method in the system (e.g., /non-existent-page).Missing Resource (Data Error): The URL maps correctly to a controller action,
but the database cannot find the specific record requested by its identifier
(e.g., trying to view details for an employee ID that does not exist).