Επεξεργασία

Κοινή χρήση μέσω


FormParameter.Evaluate(HttpContext, Control) Method

Definition

Updates and returns the value of the FormParameter object.

protected:
 override System::Object ^ Evaluate(System::Web::HttpContext ^ context, System::Web::UI::Control ^ control);
protected public:
 override System::Object ^ Evaluate(System::Web::HttpContext ^ context, System::Web::UI::Control ^ control);
protected override object Evaluate (System.Web.HttpContext context, System.Web.UI.Control control);
protected internal override object Evaluate (System.Web.HttpContext context, System.Web.UI.Control control);
override this.Evaluate : System.Web.HttpContext * System.Web.UI.Control -> obj
Protected Overrides Function Evaluate (context As HttpContext, control As Control) As Object
Protected Friend Overrides Function Evaluate (context As HttpContext, control As Control) As Object

Parameters

context
HttpContext

The current HttpContext of the request.

control
Control

A Control that is associated with the page where the FormParameter is used.

Returns

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(HttpContext, Control) method returns null.

Remarks

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.

Applies to

See also