如何獲取ActionFilter中參數的所有屬性？

Question

我有一個控制器：

public class CatController 
{ 

public something DoStuff([FromBody]string bibble) 
{ 

} 

} 

我要創建通過每個參數一個ActionFilter和循環，看看有什麼屬性，該參數有，如[FromBody。我怎樣才能做到這一點？

public class InspectParametersActionFilter : ActionFilterAttribute, IActionFilter 
{ 
    public override void OnActionExecuting(HttpActionContext actionContext) 
    { 
     actionContext.ActionDescriptor.? 
     actionContext.ActionArguments.? 
    } 
} 

Answer 1

public override void OnActionExecuting(ActionExecutingContext filterContext) 
{ 
    var allCustomAttributes = filterContext.ActionDescriptor.GetParameters() 
     .Select(s => s.GetCustomAttributes(false)); 
}