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SessionIDManager::CreateSessionID Method

Creates a unique session identifier for the session.

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

public:
virtual String^ CreateSessionID(
	HttpContext^ context
)

Parameters

context
Type: System.Web::HttpContext

The current HttpContext object that references server objects used to process HTTP requests (for example, the Request and Response properties).

Return Value

Type: System::String
A unique session identifier.

Implements

ISessionIDManager::CreateSessionID(HttpContext)

This method is not intended to be called from application code.

The CreateSessionID method returns a unique session identifier that is a randomly generated number encoded into a 24-character string consisting of lowercase characters from a to z and numbers from 0 to 5.

Notes to Inheritors

You can supply a custom session identifier to be used by ASP.NET session state by creating a class that inherits the SessionIDManager class and overriding the CreateSessionID and Validate methods with your own custom implementations. If your custom session ID does not meet the character constraints enforced by the default implementation of the Validate method, you should override the Validate method to provide validation of your custom session identifier. In this case, the SessionIDManager class will ensure that your custom session identifier is URL encoded in the HTTP response and URL decoded from the HTTP request using the Encode and Decode methods, respectively.

The following code example shows a class that inherits the SessionIDManager class and overrides the CreateSessionID and Validate methods with methods that supply and validate a Guid as the SessionID.

No code example is currently available or this language may not be supported.

To use the custom class demonstrated in this example, configure the sessionIDManagerType attribute of the sessionState Element (ASP.NET Settings Schema) element, as shown in the following example.

<sessionState
  Mode="InProc"
  stateConnectionString="tcp=127.0.0.1:42424"
  stateNetworkTimeout="10"
  sqlConnectionString="data source=127.0.0.1;Integrated Security=SSPI"
  sqlCommandTimeout="30"
  customProvider=""
  cookieless="false"
  regenerateExpiredSessionId="false"
  timeout="20"
  sessionIDManagerType="Your.ID.Manager.Type,
    CustomAssemblyNameInBinFolder"
/>

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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