Custom Action Filter in ASP.NET MVC 5

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ASP.NET MVC 5 provides five different kinds of Filters. They are as follows:

1. Authentication [Introduced in MVC5]
2. Authorization
3. Action
4. Result
5. Exception

Filters are used to inject logic at the different levels of request processing. Let us understand where at the various stages of request processing different filters get applied.

• Authentication filter runs before any other filter or action method
• Authorization filter runs after Authentication filter and before any other filter or action method
• Action filter runs before and after any action method
• Result filter runs before and after execution of any action result
• Exception filter runs only if action methods, filters or action results throw an exception

Read full article on Falafel blog here