System.Web.SessionState Namespace

Provides classes and interfaces that enable storage of data specific to a single client within a web application on the server. The session-state data is used to give the client the appearance of a persistent connection with the application. State information can be stored within local process memory or, for web farm configurations, it can be stored out of process using either the ASP.NET State service or a Microsoft SQL Server database.

Classes

HttpSessionState	Provides access to session-state values as well as session-level settings and lifetime management methods.
HttpSessionStateContainer	Contains session-state values as well as session-level settings for the current request.
SessionIDManager	Manages unique identifiers for ASP.NET session state.
SessionStateItemCollection	A collection of objects stored in session state. This class cannot be inherited.
SessionStateModule	Provides session-state services for an application. This class cannot be inherited.
SessionStateStoreData	Represents session-state data for a session store.
SessionStateStoreProviderBase	Defines the required members of a session-state provider for a data store.
SessionStateUtility	Provides helper methods used by session-state modules and session-state store providers to manage session information for an ASP.NET application. This class cannot be inherited.
StateRuntime	Manages session data stored in the ASP.NET state service. This class cannot be inherited.

Interfaces

IHttpSessionState	Defines the contract to implement a custom session-state container.
IPartialSessionState	When implemented in a type, returns a list of zero or more session keys that indicate to a session-state provider which session-state items have to be retrieved.
IReadOnlySessionState	Specifies that the target HTTP handler requires only read access to session-state values. This is a marker interface and has no methods.
IRequiresSessionState	Specifies that the target HTTP handler requires read and write access to session-state values. This is a marker interface and has no methods.
ISessionIDManager	Defines the contract that a custom session-state identifier manager must implement.
ISessionStateItemCollection	Defines the contract for the collection used by ASP.NET session state to manage session.
ISessionStateModule	Defines the interface for managing session state modules.
IStateRuntime	Defines the interface used by the ASP.NET state service to manage session data.

Enums

SessionStateActions	Identifies whether a session item from a data store is for a session that requires initialization.
SessionStateBehavior	Specifies the type of session support that is required in order to handle a request.
SessionStateMode	Specifies the session-state mode.

Delegates

SessionStateItemExpireCallback

Represents the method that handles the End event of a session-state module.

Remarks

Session state can be used with clients that do not support cookies. ASP.NET can be configured to encode a session ID in the URL string that is transmitted between the client and the server.