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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
)

Parameters

context
Type: System.Web.HttpContext

The current HttpContext of the request.

control
Type: System.Web.UI.Control

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

Return Value

Type: System.Object
An object that represents the updated and current value of the parameter. If the context or the request is null, the Evaluate method returns null.

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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0
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