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System.ComponentModel.Design Namespace

The System.ComponentModel.Design namespace contains classes that developers can use to build custom design-time behavior for components and user interfaces for configuring components at design time. The design time environment provides systems that enable developers to arrange components and configure their properties. Some components may require specific design-time only behavior to function properly in a design time environment. It may also be valuable to provide custom user interfaces which assist developers in configuring components or the values of complex data types. The classes and interfaces defined within this namespace can be used to build design-time behavior for components, access design-time services, and implement customized design-time configuration interfaces.

The classes in this namespace include:

Namespace hierarchy

Classes

Class Description
ActiveDesignerEventArgs Provides data for the ActiveDesigner event.
ArrayEditor Provides a user interface for editing arrays at design time.
ByteViewer Displays byte arrays in hexadecimal, ANSI, and Unicode formats.
CheckoutException The exception that is thrown when an attempt to check out a file that is checked into a source code management program is canceled or fails.
CollectionEditor Provides a user interface that can edit most types of collections at design time.
CollectionEditor.CollectionForm Provides a modal dialog box for editing the contents of a collection using a UITypeEditor.
CommandID Represents a unique command identifier that consists of a numeric command ID and a GUID menu group identifier.
ComponentChangedEventArgs Provides data for the ComponentChanged event. This class cannot be inherited.
ComponentChangingEventArgs Provides data for the ComponentChanging event. This class cannot be inherited.
ComponentDesigner Base designer class for extending the design mode behavior of a component.
ComponentDesigner.
ShadowPropertyCollection
Represents a collection of shadow properties that should override inherited default or assigned values for specific properties. This class cannot be inherited.
ComponentEventArgs Provides data for the ComponentAdded, ComponentAdding, ComponentRemoved, and ComponentRemoving events.
ComponentRenameEventArgs Provides data for the ComponentRename event.
DesignerCollection Represents a collection of designers.
DesignerEventArgs Provides data for the DesignerCreated and DesignerDisposed events.
DesignerTransaction Provides a way to group a series of design-time actions to improve performance and enable most types of changes to be undone.
DesignerTransactionCloseEventArgs Provides data for the TransactionClosed and TransactionClosing events.
DesignerVerb Represents a verb that can be invoked from a designer.
DesignerVerbCollection Represents a collection of DesignerVerb objects.
DesigntimeLicenseContext Represents a design-time license context that can support a license provider at design time.
DesigntimeLicenseContextSerializer Provides support for design-time license context serialization.
LocalizationExtenderProvider Provides design-time support for localization features to a root designer.
MenuCommand Represents a Windows menu or toolbar command item.
ServiceContainer Provides a simple implementation of the IServiceContainer interface. This class cannot be inherited.
StandardCommands Defines identifiers for the standard set of commands that are available to most applications.
StandardToolWindows Defines GUID identifiers that correspond to the standard set of tool windows that are available in the design environment.

Interfaces

Interface Description
IComponentChangeService Provides an interface to add and remove the event handlers for events that add, change, remove or rename components, and provides methods to raise a ComponentChanged or ComponentChanging event.
IDesigner Provides the basic framework for building a custom designer.
IDesignerEventService Provides event notifications when root designers are added and removed, when a selected compnent changes, and when the current root designer changes.
IDesignerFilter Provides an interface that enables a designer to access and filter the dictionaries of a TypeDescriptor that stores the property, attribute, and event descriptors that a component designer can expose to the design-time environment.
IDesignerHost Provides an interface for managing designer transactions and components.
IDesignerOptionService Provides access to the designer options located on the Tools menu under the Options command in the Visual Studio .NET development environment.
IDictionaryService Provides a basic, component site-specific, key-value pair dictionary through a service that a designer can use to store user-defined data.
IEventBindingService Provides a service for registering event handlers for component events.
IExtenderListService Provides an interface that can list extender providers.
IExtenderProviderService Provides an interface for adding and removing extender providers at design time.
IHelpService Provides methods for showing Help topics and adding and removing Help keywords at design time.
IMenuCommandService Provides methods to manage the global designer verbs and menu commands available in design mode, and to show some types of context menus.
IReferenceService Provides an interface for obtaining references to objects within a project by name or type, obtaining the name of a specified object, and for locating the parent of a specified object within a designer project.
IResourceService Provides an interface for designers to access resource readers and writers for specific CultureInfo resource types.
IRootDesigner Provides support for root-level designer view technologies.
ISelectionService Provides an interface for a designer to select components.
IServiceContainer Provides a container for services.
ITypeDescriptorFilterService Provides an interface to modify the set of member descriptors for a component in design mode.
ITypeResolutionService Provides an interface to retrieve an assembly or type by name.

Delegates

Delegate Description
ActiveDesignerEventHandler Represents the method that will handle the ActiveDesignerChanged event.
ComponentChangedEventHandler Represents the method that will handle a ComponentChanged event.
ComponentChangingEventHandler Represents the method that will handle a ComponentChanging event.
ComponentEventHandler Represents the method that will handle the ComponentAdding, ComponentAdded, ComponentRemoving, and ComponentRemoved events raised for component-level events.
ComponentRenameEventHandler Represents the method that will handle a ComponentRename event.
DesignerEventHandler Represents the method that will handle the DesignerCreated and DesignerDisposed events that are raised when a document is created or disposed of.
DesignerTransactionCloseEventHandler Represents the method that handles the TransactionClosed and TransactionClosing events of a designer.
ServiceCreatorCallback Provides a callback mechanism that can create an instance of a service on demand.

Enumerations

Enumeration Description
DisplayMode Defines identifiers that indicate the display modes used by ByteViewer.
HelpContextType Defines identifiers that indicate information about the context in which a request for Help information originated.
HelpKeywordType Defines identifiers that indicate the type of a Help keyword.
SelectionTypes Defines identifiers that indicate the type of a selection.
ViewTechnology Defines identifiers for a set of technologies that designer hosts support.

See Also

.NET Framework Class Library

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