以编程方式刷新/更新HttpContext.User中 [英] Programmatically refresh/update HttpContext.User

问题描述

我使用FormsAuthentication对于具有显示当前登录的用户母版页的ASP.NET网站，Page.User.Identity.Name。

I'm using FormsAuthentication for an ASP.NET site that has a master page that displays the current logged in user, Page.User.Identity.Name.

他们可以改变他们的用户名在其设置中，当这样做，我更新自己的饼干他们，使他们不会有退出与回传/重新登录。

They can change their username in their settings, and when the do so, I update their cookie for them so they wont have to sign out/sign back in with a postback.

FormsAuthentication.SignOut();
FormsAuthentication.SetAuthCookie(username, false);

我可能是pretty挑剔的，但他们改变自己的用户名后的母版页仍显示原来的用户名，直到他们重新加载或加载不同的页面。

I'm probably being pretty nit-picky, but after they change their username the master page still displays their original username until they reload or load a different page.

有没有办法以编程方式更新当前Page.User，这样可以在同一回发过程中显示他们的新用户名？

Is there any way to programmatically update the current Page.User, so that their new username can be displayed during the same postback?

推荐答案

虽然MasterMax的建议是我会做什么，你其实可以更新 Page.User 通过 HttpContext.Current.User 。

Though MasterMax's suggestion is what I would do, you can actually update the Page.User via HttpContext.Current.User.

如果您知道用户的角色（或不使用基于角色的授权），你可以利用 System.Security.Principal.GenericPrincipal 类：

If you know the user's roles (or you aren't using role based authorization), you can take advantage of the System.Security.Principal.GenericPrincipal class:

string newUsername = "New Username";
string[] roles = new string[] {"Role1", "Role2"};

HttpContext.Current.User = 
   new GenericPrincipal(new GenericIdentity(newUserName), roles);

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