Extract the data from ViewBag at base ActionFilterAttribute

Question

public class GeneralFilter : ActionFilterAttribute
{
    public override void OnActionExecuted(ActionExecutedContext filterContext)
    {
        dynamic val = filterContext.Controller.ViewBag;
        string action = filterContext.ActionDescriptor.ActionName;
        string controller = filterContext.ActionDescriptor.ControllerDescriptor.ControllerName;
    }
}

In the above code, I am passing data from controller actions through viewbag. i am able to see those data at above mentioned variable val. how to extract the data from the variable dynamic val in the above code?!

when i browse with break point this is the flow

• val {System.Web.Mvc.DynamicViewDataDictionary}
  • ViewData {System.Web.Mvc.ViewDataDictionary}
  • _innerDictionary Count = 1
    • [0] => My Required Data is here <= or
  • Values Count = 1
    • [0] => My Required Data is here <=

Answer 1

From my controller, if i pass data like this

var Numbers = new List<int> { 1, 2, 3 };

ViewBag.numbers = Numbers;

then i can fetch the data from CustomfilterAttribute like this

foreach (var number in filterContext.Controller.ViewBag.numbers)

{ var i = number; }

Note: for this you need to assign the [GeneralFilter] only for methods which pass data of ViewBag.numbers else you have to face null reference error! i Appreciate for other better answers for this!?