在登录页面中使用页面用户身份名称

Question

I have a created a project in Visual Studio 2012 using the default template. I want each user to be able to login and be redirected to a different page. I have implemented code that works on the first user login. However if I log out, then login with a different user, that user doesn't get redirected. When I debug the app, on the second login it come up blank on the Username. I have put the code in page_load event, is there a better event or better way of implementing this code?

var Username = Page.User.Identity.Name;

if (Username == "You" || Username == "you")
{
    Response.Redirect("~/you.aspx");
}
else if (Username == "Me" || Username == "me")
{
    Response.Redirect("~/me.aspx");
}
else if (Username == "Them" || Username == "them")
{
    Response.Redirect("~/Them.aspx");
}

I have also tried this code as well, however none of the users are redirected once they logged in. The it looks to me like the aspx part of the code isn't fired after or @ login:

Code Behind:

public partial class Login : Page
{
    protected void Page_Load(object sender, EventArgs e)
    {


    }
    protected void LoggedIn(object sender, EventArgs e)
    {
        //This is redirect the user to their page
        switch (Page.User.Identity.Name.ToLower())
        {
            case "me":
                Response.Redirect("~/me.aspx");
                break;
            case "you":
                Response.Redirect("~/you.aspx");
                break;
            case "them":
                Response.Redirect("~/them.aspx");
                break;
        }
    }
    protected void Unnamed6_Click(object sender, EventArgs e)
    {

    }
}

Aspx Code Here:

<%@ Page Title="Log in" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Login.aspx.cs" Inherits="ChoresLists.Account.Login" %>
<%@ Register Src="~/Account/OpenAuthProviders.ascx" TagPrefix="uc" TagName="OpenAuthProviders" %>

<asp:Content runat="server" ID="BodyContent" ContentPlaceHolderID="MainContent">
    <hgroup class="title">
        <h1><%: Title %>.</h1>
    </hgroup>
    <section id="loginForm">
        <h2>Use a local account to log in.</h2>
        <asp:Login runat="server" ViewStateMode="Disabled" RenderOuterTable="false" OnLoggedIn="LoggedIn">
            <LayoutTemplate>
                <p class="validation-summary-errors">
                    <asp:Literal runat="server" ID="FailureText" />
                </p>
                <fieldset>
                    <legend>Log in Form</legend>
                    <ol>
                        <li>
                            <asp:Label runat="server" AssociatedControlID="UserName">User name</asp:Label>
                            <asp:TextBox runat="server" ID="UserName" />
                            <asp:RequiredFieldValidator runat="server" ControlToValidate="UserName" CssClass="field-validation-error" ErrorMessage="The user name field is required." />
                        </li>
                        <li>
                            <asp:Label runat="server" AssociatedControlID="Password">Password</asp:Label>
                            <asp:TextBox runat="server" ID="Password" TextMode="Password" />
                            <asp:RequiredFieldValidator runat="server" ControlToValidate="Password" CssClass="field-validation-error" ErrorMessage="The password field is required." />
                        </li>
                        <li>
                            <asp:CheckBox runat="server" ID="RememberMe" />
                            <asp:Label runat="server" AssociatedControlID="RememberMe" CssClass="checkbox">Remember me?</asp:Label>
                        </li>
                    </ol>
                    <asp:Button runat="server" CommandName="Login" Text="Log in" OnClick="Unnamed6_Click" />
                </fieldset>
            </LayoutTemplate>
        </asp:Login>
        <p>
            <%--<asp:HyperLink runat="server" ID="RegisterHyperLink" ViewStateMode="Disabled">Register</asp:HyperLink>
            if you don't have an account.--%>
        </p>
    </section>

    <section id="socialLoginForm">

        <%--<h2>Use another service to log in.</h2>
        <uc:OpenAuthProviders runat="server" ID="OpenAuthLogin" />--%>
        <asp:Image ID="LoginImage" runat="server" ImageUrl="~/Images/102_0273.png" Width="450px" />
    </section>
</asp:Content>

Answer 1

Hey hey hey why you are using:

if (Username == "You" || Username == "you")
{
    Response.Redirect("~/you.aspx");
}
if (Username == "Me" || Username == "me")
{
    Response.Redirect("~/me.aspx");
}
if (Username == "Them" || Username == "them")
{
    Response.Redirect("~/Them.aspx");
}

Instead of using:

if (Username == "You" || Username == "you")
{
   Response.Redirect("~/you.aspx");
}
else if (Username == "Me" || Username == "me")
{
   Response.Redirect("~/me.aspx");
}
else if (Username == "Them" || Username == "them")
{
   Response.Redirect("~/Them.aspx");
}

Answer 2

Since URLs in IIS are typically case-insensitive you can just use this:

Response.Redirect(String.Format("~/{0}.aspx", Page.User.Identity.Name));

As for why the second login isn't redirecting, we would need more information as to your page life cycle and if you are doing something like if (Page.IsPostBack) checks. Are you even hitting this code when your second user logs in?

You should probably be handling the LoggedIn event of the Login control rather than putting this in Page_Load. Something like this:

Markup:

<asp:Login id="Login1" runat="server" OnLoggedIn="LoggedIn"></asp:Login>

Code:

protected void LoggedIn(object sender, EventArgs e)
{
    Response.Redirect(String.Format("~/{0}.aspx", Page.User.Identity.Name));
}

Answer 3

What you could do is something like this

Add a OnLoggedIn event to your asp:Login page

    <asp:Login  OnLoggedIn="LoggedOn" .../>

Then have a method like this

    protected void LoggedOn(object sender, EventArgs e)
    {
        switch (Page.User.Identity.Name.ToLower())
        {
            case "you":
                Response.Redirect("~you.aspx");
                break;
            case "me":
                Response.Redirect("~me.aspx");
                break;
            case "them":
                Response.Redirect("~them.aspx");
                break;
            default:
                Response.Redirect("Somewhere.aspx");
                break;
        }
    }

Answer 4

I finally figured out what I needed to do. I didn't need to change the login form at all. The only thing that I needed to do was comment out this line in Web.Config file:

<forms loginUrl="~/Account/Login" timeout="2880" defaultUrl="~/"/>

Now my logins work just fine.