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data binding

The process or method for configuring controls on a form or Web page to fetch data from or write data to a data source such as a database, XML file, and so on.

data source control

An object that can be added to an ASP.NET Web page that encapsulates the logic required to connect to a data source, such as a database or XML file, and that can execute queries or other data-access commands. A data source control can in turn provide data to other controls on that page.

deadlock

In multithreading, a condition in which each of two threads holds a lock that the other thread needs in order to proceed. See also: synchronization.

deck

A group of one or more cards. See also: card.

declarative security check

Declarative security information in metadata. Developers can use such declarations, which are usually written as custom attributes, to invoke several kinds of security functionality: require permissions to bind reference to the code, require permissions to derive a type, demand that callers have certain permissions, and so on. See also: imperative security check.

decoupled provider

A provider hosted in a separate process from WMI. Decoupled providers are the recommended way to instrument an application because the provider can control its own lifetime instead of being launched every time a user accesses the provider through WMI. See also: provider.

default unit system

The process that determines when a Web page control should appear on a new page, based on a mobile device's characteristics. The default unit system is based on one line equaling 100 units, as indicated by the DefaultWeight field in the ControlPager class.

delegate

In the .NET Framework, a reference to a function. A delegate is equivalent to a function pointer.

In WMI, a security impersonation level used to allow remote access involving more than one network hop.

delegated evaluator

A filter that uses a custom method to evaluate the specified data.

denial

By denying a permission, a method can prevent its callers from exercising the privilege represented by that permission. If a method on the call stack denies permission A, a stack walk checking for permission A will fail unless a valid assertion is found on the stack between the method doing the denial and the method that initiated the check for permission A. See also: assertion.

denial of service attack

An attack on a server exposed to the Internet that consumes excessive time, memory, or other resources. The attack intends to prevent rightful access to resources.

deployment manifest

The file used in ClickOnce applications that describes the current version of this deployment, and whether it should be installed on the client computer or only run online.

device adapter

An ASP.NET page framework class that adapts the behavior of mobile pages and controls based on the target device.

device capabilities

The set of device functionality available through the HasCapability method or the <Choice> element.

device coordinates

The coordinates used by the physical device being drawn on, such as a screen or sheet of paper.

device definition

The characteristics of a device available through the MobileCapabilitiesclass and the DeviceSpecific control.

device filter

A section of the Web.config file where you specify values for specific mobile devices. These values are used to create device-specific content.

direct access

A way of accessing properties and methods supplied by WMI in a script as if they were automation properties and methods of an object instance.

display mode

The different display states that a Web Parts page can enter, which enable users to modify a page in specified ways. The states that ship with the Web Parts control set are: catalog, connect, design, edit, and browse. The default or normal mode for a Web page is browse. Developers can extend this display mode feature by adding custom display modes, which requires extending the WebPartManager class. See also: Web Parts control set, Web Parts page.

docking

The way of determining which control borders are set flush with their parent control and how a control is resized with its parent. Docking and anchoring are mutually exclusive. See also: anchoring.

download cache

See definition for assembly cache.

dynamic control

A Web Parts control that is persisted in a personalization store; it does not appear in the declarative markup of an .aspx page. After it has been added to a page, the WebPartManager control automatically creates an instance of the control from the personalization store on future requests. See also: Web Parts controls.

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