FormParameter::Evaluate Method
Updates and returns the value of the FormParameter object.
Assembly: System.Web (in System.Web.dll)
protected: 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::ObjectAn 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.
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.