asp.net的身份获得所有角色的登录用户 [英] asp.net identity get all roles of logged in user

问题描述

我创造了我跟着本教程基于角色的菜单。一些地方下来的网页，你会看到这行code的：

I created a role based menu for which I followed this tutorial. Some where down that page you'll see this line of code:

String[] roles = Roles.GetRolesForUser();

它返回在当前登录用户的所有角色。我想知道如何使用新的ASP.NET识别系统做到这一点？

It returns all roles of the currently logged in user. I was wondering how to accomplish this with the new ASP.NET Identity system?

它仍然pretty新并没有太多找到它。

It's still pretty new and there is not much to find about it.

推荐答案

Controller.User.Identity 是 ClaimsIdentity 。您可以通过检查债权得到角色的列表...

Controller.User.Identity is a ClaimsIdentity. You can get a list of roles by inspecting the claims...

var roles = ((ClaimsIdentity)User.Identity).Claims
                .Where(c => c.Type == ClaimTypes.Role)
                .Select(c => c.Value);

--- ---更新

打破下来多一点...

Breaking it down a bit more...

using System.Security.Claims;

// ........

var userIdentity = (ClaimsIdentity)User.Identity;
var claims = userIdentity.Claims;
var roleClaimType = userIdentity.RoleClaimType;
var roles = claims.Where(c => c.Type == ClaimTypes.Role).ToList();

// or...
var roles = claims.Where(c => c.Type == roleClaimType).ToList();

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