Viewbag doesn't exist - asp.net-mvc-4

Question

I tried to do this:
var NewViewResult = new ViewResult { ViewName = "Error", ViewBag.error = "Error Here" };
I got these two errors
Invalid initializer member declarator
The name 'ViewBag' does not exist in the current context
That is my code:
public override void OnException(System.Web.Mvc.ExceptionContext filterContext)
{
if (filterContext.ExceptionHandled) return;
string actionName = filterContext.RouteData.Values["action"].ToString();
Type controllerType = filterContext.Controller.GetType();
var method = controllerType.GetMethod(actionName);
var returnType = method.ReturnType;
if (returnType.Equals(typeof(JsonResult))) if (filterContext.Exception is CustomException) filterContext.Result = new JsonResult() { Data = ((CustomException)filterContext.Exception).Type }; else filterContext.Result = new JsonResult() { Data = OurExceptionType.GeneralException };
else if (returnType.Equals(typeof(ActionResult)) || (returnType).IsSubclassOf(typeof(ActionResult))) filterContext.Result = new ViewResult { ViewName = "Error" ViewBag.error="SomeError" };
filterContext.ExceptionHandled = true;
}

Answer 1

ViewBag is a dynamic property you cannot pass it like this in a ViewResult.
Set value in ViewBag like this:
var NewViewResult = new ViewResult { ViewName = "Error" };
ViewBag.error = "Error Message";
and In View, you can simply access it without passing in the ViewResult:
<span>#ViewBag.error</span>
and if you really want to pass it in ViewResult,then don't use ViewBag, do like this:
var NewViewResult = new ViewResult { ViewName = "Error" };