System.ComponentModel Namespace (original) (raw)
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System.ComponentModel Namespace
- Reference
Provides classes that are used to implement the run-time and design-time behavior of components and controls. This namespace includes the base classes and interfaces for implementing attributes and type converters, binding to data sources, and licensing components.
Classes
| AddingNewEventArgs | Provides data for the 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 _MethodName_Completed 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 | 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. |
| DataErrorsChangedEventArgs | Provides data for the ErrorsChanged event. |
| 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. |
| DateOnlyConverter | Provides a type converter to convert DateOnly objects to and from various other representations. |
| DateTimeConverter | Provides a type converter to convert DateTime objects to and from various other representations. |
| DateTimeOffsetConverter | Provides a type converter to convert DateTimeOffset structures 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 class or member 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. |
| ErrorsChangedEventManager | Provides a WeakEventManager implementation so that you can use the weak event listener pattern to attach listeners for the ErrorsChanged event. |
| 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. |
| HalfConverter | Provides a type converter to convert half-precision, floating point number 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. |
| Int128Converter | Provides a type converter to convert 128-bit signed integer objects to and from various other representations. |
| 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 that is thrown when an invalid enumeration value is used. |
| ItemPropertyInfo | Contains information about a property. |
| 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 or parameter 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. |
| PropertyChangingEventArgs | Provides data for the PropertyChanging 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(Object) 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 | 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 Installutil.exe (Installer Tool) should be invoked when the assembly is installed. |
| RunWorkerCompletedEventArgs | Provides data for the _MethodName_Completed 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 | Provides methods to verify the machine name and path conform to a specific syntax. This class cannot be inherited. |
| TimeOnlyConverter | Provides a type converter to convert TimeOnly objects to and from various other representations. |
| TimeSpanConverter | Provides a type converter to convert TimeSpan objects to and from other representations. |
| ToolboxItemAttribute | Represents an attribute of a toolbox item. |
| ToolboxItemFilterAttribute | Specifies the filter string and filter type to use for a toolbox item. |
| TypeConverter | Provides a unified way of converting types of values to other types, as well as for accessing standard values and subproperties. |
| TypeConverter.SimplePropertyDescriptor | Represents an abstract class that provides properties for objects that do not have properties. |
| TypeConverter.StandardValuesCollection | Represents a collection of values. |
| TypeConverterAttribute | Specifies what type to use as a converter for the object this attribute is bound to. |
| TypeDescriptionProvider | Provides supplemental metadata to the TypeDescriptor. |
| TypeDescriptionProviderAttribute | Specifies the custom type description provider for a class. This class cannot be inherited. |
| TypeDescriptor | Provides information about the characteristics for a component, such as its attributes, properties, and events. This class cannot be inherited. |
| TypeListConverter | Provides a type converter that can be used to populate a list box with available types. |
| UInt128Converter | Provides a type converter to convert 128-bit unsigned integer objects to and from various other representations. |
| UInt16Converter | Provides a type converter to convert 16-bit unsigned integer objects to and from other representations. |
| UInt32Converter | Provides a type converter to convert 32-bit unsigned integer objects to and from various other representations. |
| UInt64Converter | Provides a type converter to convert 64-bit unsigned integer objects to and from other representations. |
| VersionConverter | Provides a type converter to convert Version objects to and from various other representations. |
| WarningException | Specifies an exception that is handled as a warning instead of an error. |
| Win32Exception | Throws an exception for a Win32 error code. |
Structs
| SortDescription | Defines the direction and the property name to be used as the criteria for sorting a collection. |
|---|
Interfaces
| IBindingList | Provides the features required to support both complex and simple scenarios when binding to a data source. |
|---|---|
| IBindingListView | Extends the IBindingList interface by providing advanced sorting and filtering capabilities. |
| ICancelAddNew | Adds transactional capability when adding a new item to a collection. |
| IChangeTracking | Defines the mechanism for querying the object for changes and resetting of the changed status. |
| ICollectionView | Enables collections to have the functionalities of current record management, custom sorting, filtering, and grouping. |
| ICollectionViewFactory | An interface that enables implementing collections to create a view to their data. Normally, user code does not call methods on this interface. |
| ICollectionViewLiveShaping | Defines properties that enables sorting, grouping, and filtering on a CollectionView in real time. |
| IComNativeDescriptorHandler | Provides a top-level mapping layer between a COM object and a TypeDescriptor. |
| IComponent | Provides functionality required by all components. |
| IContainer | Provides functionality for containers. Containers are objects that logically contain zero or more components. |
| ICustomTypeDescriptor | Provides an interface that supplies dynamic custom type information for an object. |
| IDataErrorInfo | Provides the functionality to offer custom error information that a user interface can bind to. |
| IEditableCollectionView | Defines methods and properties that a CollectionView implements to provide editing capabilities to a collection. |
| IEditableCollectionViewAddNewItem | Defines methods and properties that a CollectionView implements to enable specifying adding items of a specific type. |
| IEditableObject | Provides functionality to commit or rollback changes to an object that is used as a data source. |
| IExtenderProvider | Defines the interface for extending properties to other components in a container. |
| IIntellisenseBuilder | Provides an interface to facilitate the retrieval of the builder's name and to display the builder. |
| IItemProperties | Defines a property that provides information about an object's properties. |
| IListSource | Provides functionality to an object to return a list that can be bound to a data source. |
| INestedContainer | Provides functionality for nested containers, which logically contain zero or more other components and are owned by a parent component. |
| INestedSite | Provides the ability to retrieve the full nested name of a component. |
| INotifyDataErrorInfo | Defines members that data entity classes can implement to provide custom synchronous and asynchronous validation support. |
| INotifyPropertyChanged | Notifies clients that a property value has changed. |
| INotifyPropertyChanging | Notifies clients that a property value is changing. |
| IRaiseItemChangedEvents | Indicates whether a class converts property change events to ListChanged events. |
| IRevertibleChangeTracking | Provides support for rolling back the changes. |
| ISite | Provides functionality required by sites. |
| ISupportInitialize | Specifies that this object supports a simple, transacted notification for batch initialization. |
| ISupportInitializeNotification | Allows coordination of initialization for a component and its dependent properties. |
| ISynchronizeInvoke | Provides a way to synchronously or asynchronously execute a delegate. |
| ITypeDescriptorContext | Provides contextual information about a component, such as its container and property descriptor. |
| ITypedList | Provides functionality to discover the schema for a bindable list, where the properties available for binding differ from the public properties of the object to bind to. |
Enums
| BindableSupport | Specifies values to indicate whether a property can be bound to a data element or another property. |
|---|---|
| BindingDirection | Specifies whether the template can be bound one way or two ways. |
| CollectionChangeAction | Specifies how the collection is changed. |
| DataObjectMethodType | Identifies the type of data operation performed by a method, as specified by the DataObjectMethodAttribute applied to the method. |
| DesignerSerializationVisibility | Specifies the visibility a property has to the design-time serializer. |
| EditorBrowsableState | Specifies the browsable state of a property or method from within an editor. |
| InheritanceLevel | Defines identifiers for types of inheritance levels. |
| LicenseUsageMode | Specifies when the License can be used. |
| ListChangedType | Specifies how the list changed. |
| ListSortDirection | Specifies the direction of a sort operation. |
| MaskedTextResultHint | Specifies values that succinctly describe the results of a masked text parsing operation. |
| NewItemPlaceholderPosition | Specifies where the placeholder for a new item appears in the collection. |
| PropertyFilterOptions | Specifies which properties should be reported by type descriptors, specifically the GetProperties(Object) method. This enumeration is used to specify the value of the Filter property. |
| PropertyTabScope | Defines identifiers that indicate the persistence scope of a tab in the Properties window. |
| RefreshProperties | Defines identifiers that indicate the type of a refresh of the Properties window. |
| ToolboxItemFilterType | Defines identifiers used to indicate the type of filter that a ToolboxItemFilterAttribute uses. |
Delegates
| AddingNewEventHandler | Represents the method that will handle the AddingNew event. |
|---|---|
| AsyncCompletedEventHandler | Represents the method that will handle the _MethodName_Completed event of an asynchronous operation. |
| CancelEventHandler | Represents the method that handles a cancelable event. |
| CollectionChangeEventHandler | Represents the method that handles the CollectionChanged event raised when adding elements to or removing elements from a collection. |
| CurrentChangingEventHandler | Represents the method that handles the CurrentChanging event. |
| DoWorkEventHandler | Represents the method that will handle the DoWork event. This class cannot be inherited. |
| HandledEventHandler | Represents a method that can handle events which may or may not require further processing after the event handler has returned. |
| ListChangedEventHandler | Represents the method that will handle the ListChanged event of the IBindingList class. |
| ProgressChangedEventHandler | Represents the method that will handle the ProgressChanged event of the BackgroundWorker class. This class cannot be inherited. |
| PropertyChangedEventHandler | Represents the method that will handle the PropertyChanged event raised when a property is changed on a component. |
| PropertyChangingEventHandler | Represents the method that will handle the PropertyChanging event of an INotifyPropertyChanging interface. |
| RefreshEventHandler | Represents the method that handles the Refreshed event raised when a Type or component is changed during design time. |
| RunWorkerCompletedEventHandler | Represents the method that will handle the RunWorkerCompleted event of a BackgroundWorker class. |
Remarks
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.
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