Filters inject extra logic into MVC Framework request processing. They provide a simple and elegant way to implement cross-cutting concerns. This term refers to functionality that is used all over an application and doesn’t fit neatly into any one place, where it would break the separation of concerns pattern. Classic examples of cross-cutting concerns are logging, authorization, and caching. In this chapter, we will show you the different categories of filters that the MVC Framework supports, how to create and use filters, and how to control their execution.
Unable to display preview. Download preview PDF.