[ASP.NET] mvc custom filter ActionFilterAttribute class

In case the filters introduced earlier don't meet the requirements, this custom filter should come in handy if you want to define your own processing logic before and after the behavior method is executed and returned. To customize a filter, you inherit the ActionFilterAttribute class, which is an abstract class that implements the IActionFilter and IResultFilter interfaces, mainly by rewriting the four virtual methods to achieve injection logic before and after the execution and return of the behavior method

The four methods are executed in the order of OnActionExecuting>OnActionExecuted>OnResultExecuting>OnResultExecuted. The arguments of the above four methods are inherited from the ContollorContext class. For example, a custom filter is defined below

The behavioral methods for using it are defined below