SessionIDManager.CreateSessionID Method (HttpContext)


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Creates a unique session identifier for the session.

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

abstract CreateSessionID : 
        context:HttpContext -> string
override CreateSessionID : 
        context:HttpContext -> string


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.

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.

  sqlConnectionString="data source=;Integrated Security=SSPI"

.NET Framework
Available since 2.0
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