AnonymousIdentificationModule Class

Manages anonymous identifiers for the ASP.NET application.

Namespace:  System.Web.Security
Assembly:  System.Web (in System.Web.dll)

[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class AnonymousIdentificationModule : IHttpModule

The AnonymousIdentificationModule class creates and manages anonymous identifiers for an ASP.NET application. Anonymous identifiers are used by features that support anonymous identification such as the ASP.NET System.Web.Profile.

The AnonymousIdentificationModule exposes a Creating event that enables you to set the anonymous identifier to a custom value. If you do not specify a custom anonymous identifier value, a Guid is used.

The Creating event is accessed by specifying a subroutine named AnonymousIdentification_Creating in the Global.asax file for your ASP.NET application.

The AnonymousIdentificationModule is only used when anonymous identification is Enabled by setting the enabled attribute of the anonymousIdentification configuration element to true.

NoteNote:

Anonymous identification is independent of any type of ASP.NET authentication.

The following code example shows a Web.config file for an application that enables anonymous identification.

<configuration>
  <system.web>
    <authentication mode="Forms" >
      <forms loginUrl="login.aspx" name=".ASPXFORMSAUTH" />
    </authentication>

    <anonymousIdentification enabled="true" />

    <profile defaultProvider="AspNetSqlProvider">
      <properties>
        <add name="ZipCode" allowAnonymous="true" />
        <add name="CityAndState" allowAnonymous="true" />
        <add name="StockSymbols" type="System.Collections.ArrayList" 
          allowAnonymous="true" />
      </properties>
    </profile>
  </system.web>
</configuration>

System.Object
  System.Web.Security.AnonymousIdentificationModule

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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