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<< Click to Display Table of Contents >> Autenticação via form (modo simples) |
  
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<< Click to Display Table of Contents >> Autenticação via form (modo simples) |
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Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="~/Login.aspx">Login</asp:HyperLink>
<br />
<br />
</div>
<asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl="~/Protegida.aspx">Protegida</asp:HyperLink>
<br />
<br />
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<br />
</form>
</body>
</html>
Default.aspx.cs
using System;
using System.Web;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
// usuário tá autenticado?
if (HttpContext.Current.User.Identity.IsAuthenticated)
Label1.Text = "nome do usuário autenticado: " + HttpContext.Current.User.Identity.Name;
else
Label1.Text = "não autenticado";
}
}
Web.config
<?xml version="1.0"?>
<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<system.web>
<!-- modo forms e a login.aspx é quem vai validar -->
<authentication mode="Forms">
<forms name="Protegida" loginUrl="Login.aspx"/>
</authentication>
<customErrors>
</customErrors>
<compilation debug="true" targetFramework="4.0"/>
</system.web>
<!-- usuarios sem autenticacao nao podem logar na protegida -->
<location path="Protegida.aspx">
<system.web>
<authorization>
<deny users="?"/>
</authorization>
</system.web>
</location>
</configuration>
Protegida.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Protegida.aspx.cs" Inherits="Protegida" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Text="Você está logado!"></asp:Label>
<br />
<br />
<asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click">Log-out</asp:LinkButton>
</div>
</form>
</body>
</html>
Protegida.aspx.cs
using System;
using System.Web.Security;
public partial class Protegida : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
FormsAuthentication.SignOut();
}
}
Login.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Login.aspx.cs" Inherits="Login" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<p>
<asp:TextBox ID="txtLogin" runat="server"></asp:TextBox>
</p>
<p>
<asp:TextBox ID="txtSenha" runat="server"></asp:TextBox>
</p>
<p>
<asp:Button ID="btnEntrar" runat="server" onclick="btnEntrar_Click"
Text="Entrar" />
</p>
<p>
<asp:Label ID="lblMsg" runat="server" Text="Label"></asp:Label>
</p>
</form>
</body>
</html>
Login.aspx.cs
using System;
using System.Web.Security;
public partial class Login : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnEntrar_Click(object sender, EventArgs e)
{
if (txtLogin.Text == "jr" && txtSenha.Text == "123")
{
// autorizado
FormsAuthentication.RedirectFromLoginPage(txtLogin.Text, true);
}
else
lblMsg.Text = "Usuario ou senha invalidos";
}
}
Observações
Você pode usar também em conjunto os controles:
•LoginStatus
•LoginName
•LoginView