HttpContext.Current.User.Identity.Name永远的String.Empty [英] HttpContext.Current.User.Identity.Name is always string.Empty

问题描述

您好我使用一个自定义的MembershipProvider。

我想知道一个应用场景中当前用户名，但是当我试图访问HttpContext.Current.User.Identity.Name它总是返回的String.Empty。

 如果（Membership.ValidateUser（tbUsername.Text，tbPassword.Text））
{
    FormsAuthentication.SetAuthCookie（tbUsername.Text，真）;
    布尔X = User.Identity.IsAuthenticated; //真正
    字符串Y = User.Identity.Name; //
    FormsAuthentication.RedirectFromLoginPage（tbUsername.Text，cbRememberMe.Checked）;
}
 

我缺少的东西吗？

解决方案

  FormsAuthentication.SetAuthCookie（tbUsername.Text，真）;
布尔X = User.Identity.IsAuthenticated; //真正
字符串Y = User.Identity.Name; //
 

你的问题是在这一点上，你只设置身份验证Cookie，这被窗体身份验证模块内创建将不会发生，直到有新的请求的IPrincipal - 所以在这一点上HttpContext.User中是一个奇怪的状态。一旦发生重定向的话，因为它是从浏览器一个新的请求到达您的页面之前cookie将获得阅读和创建正确的用户对象。

饼干的请求完成后，仅在浏览器上设置

顺便说一句RedirectFromLoginPage创建窗体身份验证cookie的，无论如何，你不必做手工

Hi I use a custom MembershipProvider.

I want to know the current username during an application scenario, but when I try accessing HttpContext.Current.User.Identity.Name it always returns string.Empty.

if (Membership.ValidateUser(tbUsername.Text, tbPassword.Text))
{
    FormsAuthentication.SetAuthCookie(tbUsername.Text, true);
    bool x = User.Identity.IsAuthenticated; //true
    string y = User.Identity.Name; //""
    FormsAuthentication.RedirectFromLoginPage(tbUsername.Text, cbRememberMe.Checked);
}

Am I missing something?

解决方案

FormsAuthentication.SetAuthCookie(tbUsername.Text, true);
bool x = User.Identity.IsAuthenticated; //true
string y = User.Identity.Name; //""

The problem you have is at this point you're only setting the authentication cookie, the IPrincipal that gets created inside the forms authentication module will not happen until there is a new request - so at that point the HttpContext.User is in a weird state. Once the redirect happens then, because it's a new request from the browser the cookie will get read before your page is reached and the correct user object created.

Cookies are only set on the browser after a request is completed.

As an aside RedirectFromLoginPage creates a forms auth cookie anyway, you don't need to do it manually

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