如何设置ActionFilterAttribute ASP MVC 5值ViewBag？ [英] How to set values to ViewBag in ActionFilterAttribute ASP MVC 5?

问题描述

您好，我想创建我的自定义ActionFilterAttribute在我的应用程序的每个控制器，这个属性应该设置一些ViewBag值。是ActionFilterAttribute将是罚款，以及如何获得在ActionFilterAttribute访问viewbag？

Hello I would like to create my custom ActionFilterAttribute for each controller in my application, this attribute should set some ViewBag values. Is ActionFilterAttribute would be fine for it and how to get access to viewbag in ActionFilterAttribute ?

推荐答案

您可以像这样

public class SomeMsgAttribute : FilterAttribute, IResultFilter
{
        public void OnResultExecuted(ResultExecutedContext filterContext)
        {
        }

        public void OnResultExecuting(ResultExecutingContext filterContext)
        {
            filterContext.Controller.ViewBag.Msg= "Hello";
        }
}

使用：

[SomeMsg]
public ActionResult Index()
{
    return View();
}

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