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validation server controls

A set of server controls, included with ASP.NET, that verify user input. The input is checked as it comes from HTML server controls and Web server controls (for example, a Web page form) against programmer-defined requirements. Validation controls perform input checking in server code. If the user is working with a browser that supports DHTML, the validation controls can also perform validation using client script. See also ASP.NET server control, HTML server control, Web server control.

validator

See definition for validation server controls.

value type

A data type that is represented by the type's actual value. If a value type is assigned to a variable, that variable is given a fresh copy of the value. (This is in contrast to a reference type, where assignment does not create a copy.) Value types are usually created on a method's stack frame, rather than in the garbage-collected heap. A value type can be boxed, which is a process that creates a corresponding reference type. See also: boxing, reference type, unboxing.

verb

A user interface element in a Web Parts application that an end user can click to perform actions such as closing, minimizing, restoring, editing, or deleting a Web Parts control. Developers can also add custom verbs to controls. Web Parts verbs are based on the System.Web.UI.WebControls.WebParts.WebPartVerb class. See also: Web Parts controls.

verbs menu

A menu in the title bar of a part control that contains various verbs (UI actions that apply to an individual control) such as Close, Minimize, Restore, Delete, Export, Edit, Help, and others, as well as custom verbs implemented by developers. See also: part control, verb.

verification

A part of the compilation process in which code is checked for conformance to a specific set of rules defined to allow proof of certain security requirements. The common language runtime can verify Microsoft intermediate language (MSIL). See also: Microsoft intermediate language (MSIL).

version policy

The rules that specify which version of dependent assemblies to bind to. Version polices are expressed using configuration files.

virtual-mode data binding

A type of data binding in which a data-bound control retrieves only as many rows from the database as the user will be able to see on the screen.

view state

A field in an ASP.NET Web page where you can store settings that need to be preserved between postbacks. Also used to mean control state. See also: control state, postback.

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