属性为.NET MVC控制器的操作方法 [英] attribute for .net MVC controller action method

问题描述

基本上我想显示一个友好的信息，当有人是不是在我的属性中列出一个角色的一部分。目前我的应用程序只是吐用户返回到登录屏幕。我读过，谈创造只是延长[AuthorizeAttribute]自定义属性的几个帖子，但我想那里一定是东西开箱做到这一点？

Essentially I want to show a friendly message when someone is not part of a role listed in my attribute. Currently my application just spits the user back to the log in screen. I've read a few posts that talk about creating a custom attribute that just extends [AuthorizeAttribute], but I'm thinking there's got to be something out of the box to do this?

可以有人请点我的，我需要看没有它用户发送到日志形式向正确的方向，而是只拍他们未授权的消息？

can someone please point me in the right direction of where I need to look to not have it send the user to the log in form, but rather just shoot them a "not authorized" message?

推荐答案

如果简单或逻辑的总量控制是你想要的，你可以在你的操作方法把这个叫做什么：

If simplicity or total control of the logic is what you want you can call this in your action method:

User.IsInRole("NameOfRole");

它返回一个布尔值，你可以根据这个结果做你的逻辑的其余部分。

It returns a bool and you can do the rest of your logic depending on that result.

这是我在某些情况下，用另外一个是：

Another one that I've used in some cases is:

System.Web.Security.Roles.GetRolesForUser();

我想返回一个字符串[]，但不可以引用我这句话。

I think that returns a string[] but don't quote me on that.

编辑：
一个例子总是帮助...

An example always helps...

public ActionResult AddUser()
{
    if(User.IsInRoles("SuperUser")
    {
        return View("AddUser");
    }
    else
    {
        return View("SorryWrongRole");
    }
}

只要你的返回类型是的ActionResult你可以返回任何接受的返回类型（的ViewResult，PartialViewResult，RedirectResult，JsonResult ...）

As long as your return type is "ActionResult" you could return any of the accepted return types (ViewResult, PartialViewResult, RedirectResult, JsonResult...)

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