add Element for providers for sessionState (ASP.NET Settings Schema)

Articolo
04/30/2007

Adds a provider to the collection of session-state store providers.

<add 
    name="provider name" 
    type="fully qualified type reference"
/>

Attributes and Elements

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

Attributes

Attribute	Description
name	Required String attribute. Specifies the name of the provider instance. This is the value that is used for the customProvider attribute of the sessionState element to identify the provider instance as the session-state store provider when the mode attribute of the sessionState element is set to the Custom value.
type	Required String attribute. Specifies the type that is implementing the SessionStateStoreProviderBase abstract base class. The value must be a fully qualified reference to the assembly.

name

Required String attribute.

Specifies the name of the provider instance. This is the value that is used for the customProvider attribute of the sessionState element to identify the provider instance as the session-state store provider when the mode attribute of the sessionState element is set to the Custom value.

type

Required String attribute.

Specifies the type that is implementing the SessionStateStoreProviderBase abstract base class.

The value must be a fully qualified reference to the assembly.

Child Elements

None.

Parent Elements

Element	Description
configuration	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 settings in a configuration file and contains configuration elements that configure ASP.NET Web applications and control how the applications behave.
sessionState	Configures session-state settings for the current application.
providers	Contains a collection of custom session-state store providers.

Remarks

The add element adds a provider to the collection of session state store providers in the providers element. The providers element contains a collection of custom session-state store providers. The custom session-state store provider must inherit from the SessionStateStoreProviderBase class.

For information about how to access and modify configuration values for the sessionState element in application code, see ProviderSettingsCollection and Providers.

Example

The following code example shows how to use the Web.config file for an ASP.NET application that is configured to use a custom session-state store provider. For information about how to implement a session-state store provider, including a sample provider, see Implementing a Session-State Store Provider.

<configuration>
  <connectionStrings>
    <add name="OdbcSessionServices" connectionString="DSN=SessionState;" />
  </connectionStrings>

  <system.web>
    <sessionState 
      cookieless="true"
      regenerateExpiredSessionId="true" 
      mode="Custom"
      customProvider="OdbcSessionProvider">
      <providers>
        <add name="OdbcSessionProvider"
          type="Samples.AspNet.Session.OdbcSessionStateStore"
          connectionStringName="OdbcSessionServices" 
          writeExceptionsToEventLog="false" />
      </providers>
    </sessionState>
  </system.web>
</configuration>

Element Information

Configuration section handler	SessionStateSection
Configuration member	Providers
Configurable locations	Machine.config Root-level Web.config Application-level Web.config
Requirements	Microsoft Internet Information Services (IIS) version 5.0, 5.1, or 6.0 The Microsoft .NET Framework version 2.0 Microsoft Visual Studio 2003 or Visual Studio 2005

providers Element for sessionState (ASP.NET Settings Schema)
clear Element for providers for sessionState (ASP.NET Settings Schema)
remove Element for providers for sessionState (ASP.NET Settings Schema)
providers Element for sessionState (ASP.NET Settings Schema)
sessionState Element (ASP.NET Settings Schema)
system.web Element (ASP.NET Settings Schema)
configuration Element (General Settings Schema)
System.Configuration
System.Web.Configuration
SessionStateSection
ProviderSettingsCollection
Providers
SessionStateStoreProviderBase

Concepts

Implementing a Session-State Store Provider
Securing Session State
ASP.NET Configuration File Hierarchy and Inheritance
Securing ASP.NET Configuration
ASP.NET Configuration Scenarios

Other Resources

Protected Configuration
General Configuration Settings (ASP.NET)
ASP.NET Configuration Settings
Configuring ASP.NET Applications
ASP.NET Configuration API

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