SessionParameter.Evaluate Method

Updates and returns the value of the SessionParameter object.

Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)

protected override Object Evaluate (
	HttpContext context,
	Control control
protected Object Evaluate (
	HttpContext context, 
	Control control
protected override function Evaluate (
	context : HttpContext, 
	control : Control
) : Object
Not applicable.



The current HttpContext of the request.


A Control that is associated with the Web Forms page where the SessionParameter is used.

Return Value

An object that represents the updated and current value of the parameter. If the context or the request is a null reference (Nothing in Visual Basic), the Evaluate method returns a null reference (Nothing in Visual Basic).

The SessionParameter object attempts to bind to the value of the session variable every time the Evaluate method is called.

The context parameter is used by the Evaluate method to retrieve the name/value pair that the SessionParameter object binds to. The control parameter is ignored.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0