Updated: November 2007

The classes in this namespace divide into the following categories:

• Core component classes. See the Component, IComponent, Container, and IContainer classes.

• Component licensing. See the License, LicenseManager, LicenseProvider, and LicenseProviderAttribute classes.

• Attributes. See the Attribute class.

• Descriptors and persistence. See the TypeDescriptor, EventDescriptor, and PropertyDescriptor classes.

• Type converters. See the TypeConverter class.

 Classes

	Class	Description
	AddingNewEventArgs	Provides data for the BindingSource..::.AddingNew event.
	AmbientValueAttribute	Specifies the value to pass to a property to cause the property to get its value from another source. This is known as ambience. This class cannot be inherited.
	ArrayConverter	Provides a type converter to convert Array objects to and from various other representations.
	AsyncCompletedEventArgs	Provides data for the MethodNameCompleted event.
	AsyncOperation	Tracks the lifetime of an asynchronous operation.
	AsyncOperationManager	Provides concurrency management for classes that support asynchronous method calls. This class cannot be inherited.
	AttributeCollection	Represents a collection of attributes.
	AttributeProviderAttribute	Enables attribute redirection. This class cannot be inherited.
	BackgroundWorker	Executes an operation on a separate thread.
	BaseNumberConverter	Provides a base type converter for nonfloating-point numerical types.
	BindableAttribute	Specifies whether a member is typically used for binding. This class cannot be inherited.
	BindingList<(Of <(T>)>)	Provides a generic collection that supports data binding.
	BooleanConverter	Provides a type converter to convert Boolean objects to and from various other representations.
	BrowsableAttribute	Specifies whether a property or event should be displayed in a Properties window.
	ByteConverter	Provides a type converter to convert 8-bit unsigned integer objects to and from various other representations.
	CancelEventArgs	Provides data for a cancelable event.
	CategoryAttribute	Specifies the name of the category in which to group the property or event when displayed in a PropertyGrid control set to Categorized mode.
	CharConverter	Provides a type converter to convert Unicode character objects to and from various other representations.
	CollectionChangeEventArgs	Provides data for the CollectionChanged event.
	CollectionConverter	Provides a type converter to convert collection objects to and from various other representations.
	ComplexBindingPropertiesAttribute	Specifies the data source and data member properties for a component that supports complex data binding. This class cannot be inherited.
	Component	Provides the base implementation for the IComponent interface and enables object sharing between applications.
	ComponentCollection	Provides a read-only container for a collection of IComponent objects.
	ComponentConverter	Provides a type converter to convert components to and from various other representations.
	ComponentEditor	Provides the base class for a custom component editor.
	ComponentResourceManager	Provides simple functionality for enumerating resources for a component or object. The ComponentResourceManager class is a ResourceManager.
	Container	Encapsulates zero or more components.
	ContainerFilterService	Provides a base class for the container filter service.
	CultureInfoConverter	Provides a type converter to convert CultureInfo objects to and from various other representations.
	CurrentChangedEventManager	Provides a WeakEventManager implementation so that you can use the "weak event listener" pattern to attach listeners for the CurrentChanged event.
	CurrentChangingEventArgs	Provides information for the CurrentChanging event.
	CurrentChangingEventManager	Provides a WeakEventManager implementation so that you can use the "weak event listener" pattern to attach listeners for the CurrentChanging event.
	CustomTypeDescriptor	Provides a simple default implementation of the ICustomTypeDescriptor interface.
	DataObjectAttribute	Identifies a type as an object suitable for binding to an ObjectDataSource object. This class cannot be inherited.
	DataObjectFieldAttribute	Provides metadata for a property representing a data field. This class cannot be inherited.
	DataObjectMethodAttribute	Identifies a data operation method exposed by a type, what type of operation the method performs, and whether the method is the default data method. This class cannot be inherited.
	DateTimeConverter	Provides a type converter to convert DateTime objects to and from various other representations.
	DecimalConverter	Provides a type converter to convert Decimal objects to and from various other representations.
	DefaultBindingPropertyAttribute	Specifies the default binding property for a component. This class cannot be inherited.
	DefaultEventAttribute	Specifies the default event for a component.
	DefaultPropertyAttribute	Specifies the default property for a component.
	DefaultValueAttribute	Specifies the default value for a property.
	DependencyPropertyDescriptor	Provides an extension of PropertyDescriptor that accounts for the additional property characteristics of a dependency property.
	DescriptionAttribute	Specifies a description for a property or event.
	DesignerAttribute	Specifies the class used to implement design-time services for a component.
	DesignerCategoryAttribute	Specifies that the designer for a class belongs to a certain category.
	DesignerProperties	Provides attached properties used to communicate with a designer.
	DesignerSerializationVisibilityAttribute	Specifies the type of persistence to use when serializing a property on a component at design time.
	DesignOnlyAttribute	Specifies whether a property can only be set at design time.
	DesignTimeVisibleAttribute	DesignTimeVisibleAttribute marks a component's visibility. If Yes is present, a visual designer can show this component on a designer.
	DisplayNameAttribute	Specifies the display name for a property, event, or public void method which takes no arguments.
	DoubleConverter	Provides a type converter to convert double-precision, floating point number objects to and from various other representations.
	DoWorkEventArgs	Provides data for the DoWork event handler.
	EditorAttribute	Specifies the editor to use to change a property. This class cannot be inherited.
	EditorBrowsableAttribute	Specifies that a property or method is viewable in an editor. This class cannot be inherited.
	EnumConverter	Provides a type converter to convert Enum objects to and from various other representations.
	EventDescriptor	Provides information about an event.
	EventDescriptorCollection	Represents a collection of EventDescriptor objects.
	EventHandlerList	Provides a simple list of delegates. This class cannot be inherited.
	ExpandableObjectConverter	Provides a type converter to convert expandable objects to and from various other representations.
	ExtenderProvidedPropertyAttribute	Specifies a property that is offered by an extender provider. This class cannot be inherited.
	GroupDescription	Provides an abstract base class for types that describe how to divide the items in a collection into groups.
	GuidConverter	Provides a type converter to convert Guid objects to and from various other representations.
	HandledEventArgs	Provides data for events that can be handled completely in an event handler.
	ImmutableObjectAttribute	Specifies that an object has no subproperties capable of being edited. This class cannot be inherited.
	InheritanceAttribute	Indicates whether the component associated with this attribute has been inherited from a base class. This class cannot be inherited.
	InitializationEventAttribute	Specifies which event is raised on initialization. This class cannot be inherited.
	InstallerTypeAttribute	Specifies the installer for a type that installs components.
	InstanceCreationEditor	Creates an instance of a particular type of property from a drop-down box within the PropertyGrid.
	Int16Converter	Provides a type converter to convert 16-bit signed integer objects to and from other representations.
	Int32Converter	Provides a type converter to convert 32-bit signed integer objects to and from other representations.
	Int64Converter	Provides a type converter to convert 64-bit signed integer objects to and from various other representations.
	InvalidAsynchronousStateException	Thrown when a thread on which an operation should execute no longer exists or has no message loop.
	InvalidEnumArgumentException	The exception thrown when using invalid arguments that are enumerators.
	License	Provides the abstract base class for all licenses. A license is granted to a specific instance of a component.
	LicenseContext	Specifies when you can use a licensed object and provides a way of obtaining additional services needed to support licenses running within its domain.
	LicenseException	Represents the exception thrown when a component cannot be granted a license.
	LicenseManager	Provides properties and methods to add a license to a component and to manage a LicenseProvider. This class cannot be inherited.
	LicenseProvider	Provides the abstract base class for implementing a license provider.
	LicenseProviderAttribute	Specifies the LicenseProvider to use with a class. This class cannot be inherited.
	LicFileLicenseProvider	Provides an implementation of a LicenseProvider. The provider works in a similar fashion to the Microsoft .NET Framework standard licensing model.
	ListBindableAttribute	Specifies that a list can be used as a data source. A visual designer should use this attribute to determine whether to display a particular list in a data-binding picker. This class cannot be inherited.
	ListChangedEventArgs	Provides data for the ListChanged event.
	ListSortDescription	Provides a description of the sort operation applied to a data source.
	ListSortDescriptionCollection	Represents a collection of ListSortDescription objects.
	LocalizableAttribute	Specifies whether a property should be localized. This class cannot be inherited.
	LookupBindingPropertiesAttribute	Specifies the properties that support lookup-based binding. This class cannot be inherited.
	MarshalByValueComponent	Implements IComponent and provides the base implementation for remotable components that are marshaled by value (a copy of the serialized object is passed).
	MaskedTextProvider	Represents a mask-parsing service that can be used by any number of controls that support masking, such as the MaskedTextBox control.
	MemberDescriptor	Represents a class member, such as a property or event. This is an abstract base class.
	MergablePropertyAttribute	Specifies that this property can be combined with properties belonging to other objects in a Properties window.
	MultilineStringConverter	Provides a type converter to convert multiline strings to a simple string.
	NestedContainer	Provides the base implementation for the INestedContainer interface, which enables containers to have an owning component.
	NotifyParentPropertyAttribute	Indicates that the parent property is notified when the value of the property that this attribute is applied to is modified. This class cannot be inherited.
	NullableConverter	Provides automatic conversion between a nullable type and its underlying primitive type.
	ParenthesizePropertyNameAttribute	Indicates whether the name of the associated property is displayed with parentheses in the Properties window. This class cannot be inherited.
	PasswordPropertyTextAttribute	Indicates that an object's text representation is obscured by characters such as asterisks. This class cannot be inherited.
	ProgressChangedEventArgs	Provides data for the ProgressChanged event.
	PropertyChangedEventArgs	Provides data for the PropertyChanged event.
	PropertyChangedEventManager	Provides a WeakEventManager implementation so that you can use the "weak event listener" pattern to attach listeners for the PropertyChanged event.
	PropertyDescriptor	Provides an abstraction of a property on a class.
	PropertyDescriptorCollection	Represents a collection of PropertyDescriptor objects.
	PropertyFilterAttribute	Specifies which properties should be reported by type descriptors, specifically the GetProperties method.
	PropertyTabAttribute	Identifies the property tab or tabs to display for the specified class or classes.
	ProvidePropertyAttribute	Specifies the name of the property that an implementer of IExtenderProvider offers to other components. This class cannot be inherited
	ReadOnlyAttribute	Specifies whether the property this attribute is bound to is read-only or read/write. This class cannot be inherited
	RecommendedAsConfigurableAttribute	Obsolete. Specifies that the property can be used as an application setting.
	ReferenceConverter	Provides a type converter to convert object references to and from other representations.
	RefreshEventArgs	Provides data for the Refreshed event.
	RefreshPropertiesAttribute	Indicates that the property grid should refresh when the associated property value changes. This class cannot be inherited.
	RunInstallerAttribute	Specifies whether the Visual Studio Custom Action Installer or the Installer Tool (Installutil.exe) should be invoked when the assembly is installed.
	RunWorkerCompletedEventArgs	Provides data for the MethodNameCompleted event.
	SByteConverter	Provides a type converter to convert 8-bit unsigned integer objects to and from a string.
	SettingsBindableAttribute	Specifies when a component property can be bound to an application setting.
	SingleConverter	Provides a type converter to convert single-precision, floating point number objects to and from various other representations.
	SortDescriptionCollection	Represents a collection of SortDescription objects.
	StringConverter	Provides a type converter to convert string objects to and from other representations.
	SyntaxCheck	Infrastructure. Provides methods to verify the machine name and path conform to a specific syntax. This class cannot be inherited.
	TimeSpanConverter	Provides a type converter to convert