MobileFormsAuthentication Class
Supports cookieless devices by appending appropriate authentication information to the appropriate URLs.
Assembly: System.Web.Mobile (in System.Web.Mobile.dll)
'Declaration <AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level := AspNetHostingPermissionLevel.Minimal)> _ <AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level := AspNetHostingPermissionLevel.Minimal)> _ Public Class MobileFormsAuthentication 'Usage Dim instance As MobileFormsAuthentication
This helper class is designed to assist with writing authenticated mobile Web sites. The class objects provide mobile device-compatible versions of the ASP.NET FormsAuthentication class methods, RedirectFromLoginPage and SignOut. For more information on securing your Web application, see Basic Security Practices for Web Applications.
The following code example shows a login.aspx page. The authentication is validated using the ValidateUser function. The Membership class relies on membership providers to communicate with a data source.
<%@ Page Language="VB" Inherits="System.Web.UI.MobileControls.MobilePage" %> <%@ Register TagPrefix="mobile" Namespace="System.Web.UI.MobileControls" Assembly="System.Web.Mobile" %> <%@ Import Namespace="System.Web.Security" %> <%@ Import Namespace="System.Web.Mobile" %> <script runat="server"> Private Sub Login_Click(ByVal sender As Object, ByVal e As EventArgs) ' Perform Authentication check here by using ' UserEmail.Value and UserPswd.Value. If (Membership.ValidateUser(UserEmail.Text, UserPswd.Text)) Then ' Set the authorization cookie FormsAuthentication.SetAuthCookie(UserEmail.Text, False) ' Redirect from login page MobileFormsAuthentication.RedirectFromLoginPage(UserEmail.Text, True) Else ' Notify the user lblError.Text = "Login invalid. Please check your credentials" End If End Sub </script> <html xmlns="http://www.w3.org/1999/xhtml" > <body> <mobile:form id="form1" runat="server"> <Mobile:Label ID="Label1" runat="server">Enter username</Mobile:Label> <Mobile:TextBox id="UserEmail" runat="Server"/> <Mobile:Label ID="Label2" runat="server">Enter password</Mobile:Label> <Mobile:TextBox id="UserPswd" runat="Server"/> <Mobile:Command ID="Command1" runat="Server" OnClick="Login_Click" SoftkeyLabel="og">Go</Mobile:Command> <Mobile:Label runat="server" id="lblError" /> </mobile:form> </body> </html>
- AspNetHostingPermission
for operating in a hosted environment. Demand value: LinkDemand; Permission value: Minimal.
- AspNetHostingPermission
for operating in a hosted environment. Demand value: InheritanceDemand; Permission value: Minimal.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.