Custom Action Filters in ASP.NET MVC

Transcript

1. Custom Action Filters in ASP.NET MVC
2. What are action filters? An attribute that can be applied to an individual action method on a controller, or to the entire controller.
3. Filter Types 1. Authorize 2. Action 3. Result 4. Exception
4. Built-in Filter Attributes Authorize HandleError RequireHttps ValidateInput OutputCache
5. ActionFilterAttribute IAuthorizationFilter IActionFilter IResultFilter IExceptionFilter HandleError RequireHttps Authorize OutputCache ValidateInput FilterAttribute
6. ActionFilterAttribute IAuthorizationFilter IActionFilter IResultFilter IExceptionFilter HandleError RequireHttps Authorize OutputCache ValidateInput FilterAttribute
7. ActionFilterAttribute IAuthorizationFilter IActionFilter IResultFilter IExceptionFilter HandleError RequireHttps Authorize OutputCache ValidateInput FilterAttribute
8. Built-in Filter Attributes Authorize HandleError RequireHttps ValidateInput OutputCache
10. Built-in Filter Attributes Authorize HandleError RequireHttps ValidateInput OutputCache
11. Turn on custom errors in Web.config: FilterConfig.cs
12. Global.asax
13. Built-in Filter Attributes Authorize HandleError RequireHttps ValidateInput OutputCache
15. Built-in Filter Attributes Authorize HandleError RequireHttps ValidateInput OutputCache
17. Built-in Filter Attributes Authorize HandleError RequireHttps ValidateInput OutputCache
19. Custom Filters • Share code across action methods • Share code across controllers • Custom exception handling • Logging • Modify responses • Save responses
20. ActionFilterAttribute Override Methods: 1. OnActionExecuting 2. OnActionExecuted 3. OnResultExecuting 4. OnResultExecuted
21. Action Filters… In Action
22. Start Filtering 1. Name your filters appropriately
23. CustomFilter is NOT a good name.
24. Start Filtering 1. Name your filters appropriately 2. Apply to one or more action
25. Start Filtering 1. Name your filters appropriately 2. Apply to one or more action 3. Apply to one or more controller
26. Start Filtering 1. Name your filters appropriately 2. Apply to one or more action 3. Apply to one or more controller 4. Apply globally
27. FilterConfig.cs
28. Start Filtering 1. Name your filters appropriately 2. Apply to one or more action 3. Apply to one or more controller 4. Apply globally 5. Specify the order
30. Custom Action Filters in ASP.NET MVC