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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 public:
virtual Object^ Evaluate(
	HttpContext^ context, 
	Control^ control
) override

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 nullptr, the Evaluate method returns nullptr.

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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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