httpModules Element (ASP.NET Settings Schema)

.NET Framework General Reference

Configures the HTTP modules within an application. This element can be declared at any level in the configuration hierarchy.

<configuration> Element
system.web Element (ASP.NET Settings Schema)
httpModules Element (ASP.NET Settings Schema)

<httpModules> 
   <add... />
   <remove... />
   <clear/>
</httpModules>

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attributes

None.

Child Elements

Element	Description
add	Optional element. Adds an httpModules element to an application.
clear	Optional element. Removes all httpModules element from an application.
remove	Optional element. Removes a reference to an httpModules element. The value must exactly match that of a previous add directive.

Element

Description

add

Optional element.

Adds an httpModules element to an application.

clear

Optional element.

Removes all httpModules element from an application.

remove

Optional element.

Removes a reference to an httpModules element.

The value must exactly match that of a previous add directive.

Parent Elements

Element	Description
configuration	Specifies the required root element in every configuration file that is used by the common language runtime and the .NET Framework applications.
system.web	Specifies the root element for the ASP.NET configuration section.

Remarks

Default Configuration

The following default httpModules element is configured in the Machine.config file in the .NET Framework version 1.1.

<httpModules>
     <add name="OutputCache" type="System.Web.Caching.OutputCacheModule"/>
     <add name="Session" type="System.Web.SessionState.SessionStateModule"/>
     <add name="WindowsAuthentication" type="System.Web.Security.WindowsAuthenticationModule"/>
     <add name="FormsAuthentication" type="System.Web.Security.FormsAuthenticationModule"/>
     <add name="PassportAuthentication" type="System.Web.Security.PassportAuthenticationModule"/>
     <add name="UrlAuthorization" type="System.Web.Security.UrlAuthorizationModule"/>
     <add name="FileAuthorization" type="System.Web.Security.FileAuthorizationModule"/>
     <add name="ErrorHandlerModule" type="System.Web.Mobile.ErrorHandlerModule, System.Web.Mobile, 
          Version=1.0.5000.0, Culture=neutral, 
          PublicKeyToken=b03f5f7f11d50a3a"/>
</httpModules>

The following default httpModules element is configured in the Machine.config file in the .NET Framework version 1.0.

<httpModules>
     <add name="OutputCache" type="System.Web.Caching.OutputCacheModule" />
     <add name="Session" type="System.Web.SessionState.SessionStateModule" />
     <add name="WindowsAuthentication" type="System.Web.Security.WindowsAuthenticationModule" />
     <add name="FormsAuthentication" type="System.Web.Security.FormsAuthenticationModule" />
     <add name="PassportAuthentication" type="System.Web.Security.PassportAuthenticationModule" />
     <add name="UrlAuthorization" type="System.Web.Security.UrlAuthorizationModule" />
     <add name="FileAuthorization" type="System.Web.Security.FileAuthorizationModule" />
</httpModules>

The following default httpModules element is configured in the root Web.config file in the .NET Framework version 2.0.

<httpModules>
     <add name="OutputCache" type="System.Web.Caching.OutputCacheModule" />
     <add name="Session" type="System.Web.SessionState.SessionStateModule" />
     <add name="WindowsAuthentication" type="System.Web.Security.WindowsAuthenticationModule" />
     <add name="FormsAuthentication" type="System.Web.Security.FormsAuthenticationModule" />
     <add name="PassportAuthentication" type="System.Web.Security.PassportAuthenticationModule" />
     <add name="RoleManager" type="System.Web.Security.RoleManagerModule" />
     <add name="UrlAuthorization" type="System.Web.Security.UrlAuthorizationModule" />
     <add name="FileAuthorization" type="System.Web.Security.FileAuthorizationModule" />
     <add name="AnonymousIdentification" type="System.Web.Security.AnonymousIdentificationModule" />
     <add name="Profile" type="System.Web.Profile.ProfileModule" />
</httpModules>

Example

The following code example demonstrates how to add three HttpModulereferences to the ASP.NET application.

<configuration>
   <system.web>
      <httpModules>
         <add type="System.Web.Caching.OutputCacheModule" 
              name="OutputCache"/>
         <add type="System.Web.SessionState.SessionStateModule" 
              name="Session"/>
         <add type=Selector, selector.dll"
              name="Selector"/>
      </httpModules>
   </system.web>
</configuration>

Element Information

Configuration section handler	System.Web.Configuration..::.HttpModulesSection
Configuration member	SystemWebSectionGroup..::.HttpModules
Configurable locations	Machine.config Root-level Web.config Application-level Web.config Virtual or physical directory–level Web.config
Requirements	Microsoft Internet Information Services (IIS) version 5.0, 5.1, or 6.0 The .NET Framework version 1.0, 1.1, or 2.0 Microsoft Visual Studio 2003 or Visual Studio 2005

Attributes

Child Elements

Parent Elements

Default Configuration

Tasks

Concepts

Reference

Other Resources