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FormParameter::Evaluate Method

Updates and returns the value of the FormParameter 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 page where the FormParameter 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 (Nothing in Visual Basic), the Evaluate method returns null.

The FormParameter attempts to bind to the form variable every time the Evaluate method is called.

The context parameter is used by the Evaluate method to retrieve the value of the specified form field from the request. 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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