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Quick Filters
.NET Framework API Reference version 4.6.1
Name | Description |
---|---|
Accessibility Namespace | Represents a managed wrapper for the Component Object Model (COM) accessibility interface. |
Microsoft. | Classes related to workflow build tasks. |
Microsoft. | Classes related to the build debugger. |
Microsoft. | Classes related to build expressions. |
Microsoft. | The Microsoft.Activities.Build.Validation provides classes related to build validation. |
Microsoft. | Represents the MSBuild engine. For more information, see MSBuild. |
Microsoft. | Contains types that the MSBuild object model uses to construct project roots with unevaluated values. Each project root corresponds to a project or targets file. For information, see MSBuild. |
Microsoft. | Contains types that Visual Studio uses to convert project files from an older version of Visual Studio. |
Microsoft. | Contains type for managing the debugger. |
Microsoft. | Contains types that the MSBuild object model uses to evaluate projects. Each project is associated with one or more project roots. For information, see MSBuild. |
Microsoft. | Contains exception types that may be thrown during the build process. |
Microsoft. | Contains types that the MSBuild object model uses to build projects. For information, see MSBuild. |
Microsoft. | Contains the types that define how tasks and loggers interact with the MSBuild engine. For information, see MSBuild. |
Microsoft. | Classes used to represent XAML types parsed from files, rules, and other sources. |
Microsoft. | Contains types used for logging the progress of a build. For information, see MSBuild. |
Microsoft. | Contains the implementation of all tasks shipping with MSBuild. For information, see MSBuild. |
Microsoft. | Contains classes used internally by MSBuild. |
Microsoft. | Contains classes that MSBuild uses. |
Microsoft. | Contains classes used internally by MSBuild. |
Microsoft. | Contains the implementation of all tasks shipping with MSBuild. The types in this namespace support the Windows Presentation Foundation (WPF) infrastructure and are not intended to be used directly from your code. |
Microsoft. | Provides classes related to XAML build tasks. |
Microsoft. | Provides helper classes that you can use to create your own MSBuild loggers and tasks. For information, see MSBuild. |
Microsoft. | Contains classes that support compilation and code generation using the C# language. |
Microsoft. | Classes related to C# activities. |
Microsoft. | Provides classes and interfaces that support interoperation between Dynamic Language Runtime and C#. |
Microsoft. | Contains classes that support compilation and code generation using the JScript language. |
Microsoft. | Contains interfaces that allow you to integrate Script for the.NET Framework script engines into JScript, and to compile and execute code at run time. |
Microsoft. | This is a helper library for Microsoft.Data.SqlClient, enabling cross framework support of UDT types. The library implements the required types on .NET Standard 2.0 for compatibility with .NET and .NET Core target frameworks and type forwards them when targeting .NET Framework. Contains classes, interfaces, and enumerations that are specific to the integration of the Microsoft .NET Framework common language runtime (CLR) into Microsoft SQL Server, and the SQL Server database engine process execution environment. Contains classes, interfaces, and enumerations that are specific to the integration of the Microsoft .NET Framework common language runtime (CLR) into Microsoft SQL Server, and the SQL Server database engine process execution environment. |
Microsoft. | Contains types that support the Visual Basic Runtime in Visual Basic. |
Microsoft. | Provides classes related to Visual Basic activities.h. |
Microsoft. | Provides classes related to Visual Basic XAML integration. |
Microsoft. | Contains types that support the Visual Basic Application Model and provide access to application information. |
Microsoft. | Contains functions and objects provided use by the tools for upgrading from Visual Basic 6.0 to Visual Basic 2008. |
Microsoft. | Contains internal-use only types that support the Visual Basic compiler. |
Microsoft. | Contains types that support the My objects related to devices in Visual Basic. |
Microsoft. | Contains types that support the My file system object in Visual Basic. |
Microsoft. | Contains types that support the My logging objects in Visual Basic and provides a simple log listener that directs logging output to file. |
Microsoft. | Contains types that support My in Visual Basic. |
Microsoft. | Contains internal-use only types that support My in Visual Basic. |
Microsoft. | Contains classes that support compilation and code generation using the C++ language. |
Microsoft. | Contains the classes, interfaces, and enumerators that are used to implement the STL/CLR Library. |
Microsoft. | Contains the classes, interfaces, and iterators that are used to implement the generic interface to the STL/CLR Library. By using this generic interface, other .NET languages, such as C# and Visual Basic, can call code that is written using STL/CLR. |
Microsoft. | Provides two types of classes: those that handle events raised by the operating system and those that manipulate the system registry. |
Microsoft. | Contains classes that are abstract derivations of safe handle classes that provide common functionality supporting file and operating system handles. |
Microsoft. | Contains interfaces for preview commands in a Microsoft Ribbon for WPF control. |
Microsoft. | Provides exposure to the set of themes defined by Windows Presentation Foundation. In WPF, a theme is a set of resources, defined at the system level, which provide the default appearance for controls and other visual elements of an application. WPF themes are created using styles and include Luna, Aero, Royale, and Classic. Only the client area of a WPF application uses these themes; the appearance of the window border and buttons that form the window chrome is controlled by the Win32 theme service. |
System Namespace | Contains fundamental classes and base classes that define commonly-used value and reference data types, events and event handlers, interfaces, attributes, and processing exceptions. |
System. | Provides classes related to system activities. |
System. | Provides classes related to presentation. |
System. | Provides classes related to presentation factories. |
System. | Provides classes related to presentation themes. |
System. | Provides classes related to the system debugger. |
System. | Provides classes related to debugger symbols. |
System. | Provides classes related to durable instancing. |
System. | Provides classes related to dynamic updates. |
System. | Provides classes related to expression parsing. |
System. | Provides classes related to expressions. |
System. | Provides classes related to hosting. |
System. | Provides classes related to persistence. |
System. | Provides classes related to presentation. |
System. | Provides classes related to presentation annotations. |
System. | Provides classes related to converters. |
System. | Provides classes related to presentation debugging. |
System. | Provides classes related to expressions. |
System. | Provides classes related to hosting. |
System. | Provides classes related to presentation metadata. |
System. | Provides classes related to presentation model. |
System. | Provides classes related to property editing. |
System. | Provides classes related to presentation services. |
System. | Provides classes related to SQM. |
System. | Classes related to the presentation toolbox. |
System. | Provides classes related to validation. |
System. | Provides classes related to presentation views. |
System. | Provides classes related to the outline view. |
System. | Provides classes related to view state data and management of view states. |
System. | Provides classes related to activity statements. |
System. | Provides classes for monitoring state machine state executions and state transitions. |
System. | Contains classes used to create and interact with workflow tracking records. Tracking records are created by the workflow runtime when a workflow instance executes, and are accessed by classes that inherit from TrackingParticipant. |
System. | Provides classes related to custom activity validation. |
System. | Contains classes that provide support for the serialization of activities into XAML. |
System. | Contains the AddInAttribute attribute for identifying add-ins. |
System. | Contains interfaces and structures that provide the basis for communication between components that are updated independently. |
System. | Contains interfaces that components use to access type information and invoke type members. |
System. | Contains interfaces that define collections of IContract and RemoteArgument objects. |
System. | Provides classes for discovering, registering, activating, and controlling Add-Ins. |
System. | Provides classes for constructing the communication pipeline between a host application and an add-in. |
System. | Contains classes that can be used to represent the elements and structure of a source code document. The classes in this namespace can be used to model the structure of a source code document that can be output as source code in a supported language using the functionality provided by the System.CodeDom.Compiler namespace. |
System. | Contains types for managing the generation and compilation of source code in supported programming languages. Code generators can each produce source code in a particular programming language based on the structure of Code Document Object Model (CodeDOM) source code models consisting of elements provided by the System.CodeDom namespace. |
System. | Contains interfaces and classes that define various collections of objects, such as lists, queues, bit arrays, hash tables and dictionaries. |
System. | Provides several thread-safe collection classes that should be used in place of the corresponding types in the System.Collections and System.Collections.Generic namespaces whenever multiple threads are accessing the collection concurrently. However, access to elements of a collection object through extension methods or through explicit interface implementations are not guaranteed to be thread-safe and may need to be synchronized by the caller. |
System. | Contains interfaces and classes that define generic collections, which allow users to create strongly typed collections that provide better type safety and performance than non-generic strongly typed collections. |
System. | Contains classes that can be used as collections in the object model of a reusable library. Use these classes when properties or methods return collections. |
System. | Contains specialized and strongly-typed collections; for example, a linked list dictionary, a bit vector, and collections that contain only strings. |
System. | 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. |
System. | This namespace provides classes that constitute the core of the Managed Extensibility Framework, or MEF. |
System. | Provides Managed Extensibility Framework (MEF) types that are useful to developers of extensible applications, or hosts. |
System. | This namespace provides the primitive types underlying the MEF programming model. |
System. | Provides Managed Extensibility Framework (MEF) types for developers who use a reflection-based programming model. |
System. | Contains types that enable rule-based configuration of Managed Extensibility Framework (MEF) parts. |
System. | Provides attribute classes that are used to define metadata for ASP.NET MVC and ASP.NET data controls. |
System. | Provides support for attribute classes that are used to define metadata for ASP.NET MVC and ASP.NET data controls. |
System. | 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. |
System. | Contains classes you can use to build custom design-time behavior for data-related components. |
System. | Provides types that support customization and control of serialization at design time. |
System. | Contains the types that provide the programming model for handling configuration data. |
System. | Contains classes that are used to configure an assembly. |
System. | Provides classes that allow you to write custom installers for your own components. The Installer class is the base class for all custom installers in .NET Framework. |
System. | Contains configuration types that are intended for internal use only. |
System. | Contains the base classes shared by both server and client applications to support a pluggable model to easily add or remove functionality. |
System. | Provides access to classes that represent the ADO.NET architecture. ADO.NET lets you build components that efficiently manage data from multiple data sources. |
System. | Contains classes shared by .NET data providers. |
System. | Provides classes to build expressions that make up a command tree. |
System. | Provides a command tree API. |
System. | Contains a class that represent the Entity Data Model (EDM) functions of a spatial. |
System. | Includes the EntitySqlParser class and other support classes. These classes enable you to parse an Entity SQL query string and create a command tree query. |
System. | Contains classes that can be used to generate a custom typed-dataset. |
System. | Contains classes to generate Entity Data Model (EDM) files and object source code. |
System. | Contains the Entity Data Model (EDM) build providers for the ASP.NET build environment. |
System. | Provides classes for changing words from singular to plural form, and vice versa. |
System. | The System.Data.EntityClient namespace is the .NET Framework Data Provider for the Entity Framework. |
System. | Contains classes that support interaction with relational databases in LINQ to SQL applications. |
System. | Contains classes that are used to generate a LINQ to SQL object model that represents the structure and content of a relational database. |
System. | Contains provider classes for communicating with SQL Server and classes that contain query helper methods. |
System. | Contains types that are used for the internal implementation details of a SQL Server provider. |
System. | Provides access to the MappingItemCollection and StorageMappingItemCollection classes. |
System. | Contains a set of types that represent concepts throughout the models used by the Entity Framework and a set of classes that help applications to work with metadata. |
System. | Includes classes that provide access to the core functionality of Object Services. These classes enable you to query, insert, update, and delete data by working with strongly typed CLR objects that are instances of entity types. Object Services supports both Language-Integrated Query (LINQ) and Entity SQL queries against types that are defined in an Entity Data Model (EDM). Object Services materializes the returned data as objects and propagates object changes back to the data source. It also provides facilities for tracking changes, binding objects to controls, and handling concurrency. For more information, see Object Services Overview (Entity Framework). |
System. | Includes classes that are base classes for types that are defined in an Entity Data Model (EDM), base classes for the types that are returned by navigation properties, and classes that define attributes that map common language runtime (CLR) objects to types in the conceptual model. |
System. | Provides the SqlFunctions class, which contains common language runtime (CLR) methods that translate to database functions. Methods in the SqlFunctions class can only be used in LINQ to Entities queries. |
System. | The System.Data.Odbc namespace is the .NET Framework Data Provider for ODBC. |
System. | The System.Data.OleDb namespace is the.NET Framework Data Provider for OLE DB. |
System. | The System.Data.OracleClient namespace is the .NET Framework Data Provider for Oracle. |
System. | Provides access to classes used to build WCF Data Services. |
System. | Classes in this namespace generate C# or Visual Basic code for a WCF Data Services client application based on the metadata returned by the data service. |
System. | Represents the .NET Framework client library that applications can use to interact with WCF Data Services. |
System. | Implements functionality common to both WCF Data Services client and server runtimes. |
System. | This namespace provides configuration settings for WCF data services features. |
System. | Used by the code generation command line tools and tools in Visual Studio to generate strongly-typed client side objects for communicating with data services. |
System. | This class is not for public use and is used internally by the system to implement support for queries with eager loading of related entities. |
System. | Provides a series of interfaces that are implemented to define a custom data service provider for WCF Data Services. |
System. | Contains classes for spatial database functionality. |
System. | Contains classes that support SQL Server-specific functionality. |
System. | The System.Data.SqlClient namespace is the .NET Data Provider for SQL Server. |
System. | Provides classes for native data types in SQL Server. These classes provide a safer, faster alternative to the data types provided by the .NET Framework common language runtime (CLR). Using the classes in this namespace helps prevent type conversion errors caused by loss of precision. Because other data types are converted to and from SqlTypes behind the scenes, explicitly creating and using objects within this namespace also yields faster code. |
System. | With the System.Deployment.Application namespace, you can program custom upgrade behavior into your ClickOnce application. |
System. | Contains helper classes for accessing the internal members of ActivationContext and ApplicationIdentity objects. |
System. | Allows application developers to easily access the computer's location by using a single API. Location information may come from multiple providers, such as GPS, Wi-Fi triangulation, and cell phone tower triangulation. The System.Device.Location classes provide a single API to encapsulate the multiple location providers on a computer and support seamless prioritization and transitioning between them. As a result, application developers who use this API do not need to tailor applications to specific hardware configurations. |
System. | Provides classes that allow you to interact with system processes, event logs, and performance counters. |
System. | Contains classes for interaction with code analysis tools. These tools are used to analyze code for conformance to coding conventions such as naming or security rules. |
System. | Contains static classes for representing program contracts such as preconditions, postconditions, and invariants. |
System. | Provides classes that the binary rewriter can use to handle a contract failure. |
System. | Contains classes that can be used to extend design-time support for application monitoring and instrumentation. |
System. | Contains the classes used to instrument your application. The instrumentation, when enabled, logs the event data to the Event Tracing for Windows (ETW) tracing subsystem. For a complete description of ETW, see Event Tracing for Windows. |
System. | Using the System.Diagnostics.Eventing.Reader namespace, you can develop applications that read and manage event logs. An event in an event log contains information, a warning, or an error that has been published by a specific application, service, or operating system component. These events are read by applications that monitor a computer's health and applications that take action when specific events occur. For more information, see Technology Summary for Reading and Managing Event Logs and Event Log Scenarios. |
System. | Use the classes in this namespace to provide counter data. The counters are used to expose performance metrics to consumers such as the Performance Monitor. The namespace does not contain classes for consuming the counter data. For a complete description of the performance counters architecture, see Performance Counters. |
System. | Provides classes that allow you to read and write debug symbol information, such as source line to Microsoft intermediate language (MSIL) maps. Compilers that target .NET can store the debug symbol information into programmer's database (PDB) files. Debuggers and code profiler tools can read the debug symbol information at run time. |
System. | Provides types and members that enable you to create strongly typed events to be captured by event tracing for Windows (ETW). |
System. | Provides easy access to Active Directory Domain Services from managed code. The namespace contains two component classes, DirectoryEntry and DirectorySearcher, which use the Active Directory Services Interfaces (ADSI) technology. ADSI is the set of interfaces that Microsoft provides as a flexible tool for working with a variety of network providers. ADSI gives the administrator the ability to locate and manage resources on a network with relative ease, regardless of the size of the network. |
System. | Provides uniform access and manipulation of user, computer, and group security principals across the multiple principal stores: Active Directory Domain Services (AD DS), Active Directory Lightweight Directory Services (AD LDS), and Machine SAM (MSAM). System.DirectoryServices.AccountManagement manages directory objects independent of the System.DirectoryServices namespace. |
System. | Provides a high level abstraction object model that builds around Microsoft Active Directory services tasks. The Active Directory service concepts such as forest, domain, site, subnet, partition, and schema are part of the object model. |
System. | Provides the methods defined in the Lightweight Directory Access Protocol (LDAP) version 3 (V3) and Directory Services Markup Language (DSML) version 2.0 (V2) standards. |
System. | Provides access to GDI+ basic graphics functionality. The System.Drawing.Drawing2D, System.Drawing.Imaging, and System.Drawing.Text namespaces provide more advanced functionality. For limitations, see the Remarks section. |
System. | Contains a class that supports configuration for classes in the System.Drawing namespace. |
System. | Contains classes that extend design-time user interface (UI) logic and drawing. |
System. | Provides advanced two-dimensional and vector graphics functionality. |
System. | Provides advanced GDI+ imaging functionality. Basic graphics functionality is provided by the System.Drawing namespace. |
System. | Provides print-related services for Windows Forms applications. |
System. | Provides advanced GDI+ typography functionality. |
System. | Provides classes and interfaces that support Dynamic Language Runtime. |
System. | Provides .NET objects with access to COM+ services making the .NET Framework objects more practical for enterprise applications. |
System. | Provides classes that allow you to use a Compensating Resource Manager (CRM) in managed code. A CRM is a service provided by COM+ that enables you to include nontransactional objects in Microsoft Distributed Transaction Coordinator (DTC) transactions. Although CRMs do not provide the capabilities of a full resource manager, they do provide transactional atomicity (all or nothing behavior) and durability through the recovery log. |
System. | Provides infrastructure support for COM+ services. The classes and interfaces in this namespace are specifically intended to support calls into System.EnterpriseServices from the unmanaged COM+ classes. |
System. | Contains classes that define culture-related information, including language, country/region, calendars in use, format patterns for dates, currency, and numbers, and sort order for strings. These classes are useful for writing globalized (internationalized) applications. Classes such as StringInfo and TextInfo provide advanced globalization functionalities, including surrogate support and text element processing. |
System. | Contains types that allow reading and writing to files and data streams, and types that provide basic file and directory support. |
System. | Contains classes that provide basic compression and decompression services for streams. |
System. | Contains types that allow the creation and use of isolated stores. With these stores, you can read and write data that less trusted code cannot access and prevent the exposure of sensitive information that can be saved elsewhere on the file system. Data is stored in compartments that are isolated by the current user and by the assembly in which the code exists. Additionally, data can be isolated by domain. Roaming profiles can be used in conjunction with isolated storage so isolated stores will travel with the user's profile. The IsolatedStorageScope enumeration indicates different types of isolation. For more information about when to use isolated storage, see Isolated Storage. |
System. | Defines an interface for logging to a record-oriented sequential I/O system. |
System. | Provides classes for using a memory-mapped file, which maps the contents of a file to an application's logical address space. |
System. | Provides classes that support storage of multiple data objects in a single container. |
System. | Contains types that provide a means for interprocess communication through anonymous and/or named pipes. |
System. | Contains classes for controlling serial ports. The most important class, SerialPort, provides a framework for synchronous and event-driven I/O, access to pin and break states, and access to serial driver properties. It can be used to wrap Stream objects, allowing the serial port to be accessed by classes that use streams. |
System. | Contains classes that are used to build security token services (STS). These include the SecurityTokenService and Scope classes, as well as exception several utility classes that provide the ability to perform cookie transforms. |
System. | Contains classes that implement the Windows Communication Foundation (WCF) claims-based identity authorization model. This model includes the Claim class and the ClaimSet class. Beginning with .NET Framework 4.5 and the integration of Windows Identity Foundation (WIF) into the .NET Framework, the WCF claims-based identity model has been superseded by WIF. WIF provides a claims-based identity object model that can be used to provide authentication and authorization across several Microsoft product stacks, including the CLR, WCF, and ASP.NET. The WIF classes that represent claims, claim types, and identities and principals that are based on claims are contained in the System.Security.Claims namespace. Beginning with .NET 4.5, these classes should be used instead of those in the System.IdentityModel.Claims namespace. |
System. | Contains classes that provide configuration for applications and services built using the Windows Identity Foundation (WIF). The classes in this namespace represent settings under the <identityConfiguration> element. Classes that configure federation using the WS-Federation protocol are contained primarily in the System.IdentityModel.Services.Configuration namespace. These settings appear under the <system.identityModel.services> element in a configuration file. |
System. | Contains classes that represent elements in a Federation Metadata document. A Federation Metadata document is an XML document that provides information that may be useful to partners when establishing a federation. For more information about federation metadata, see section three of the following specification: Web Services Federation Language (WS-Federation) Version 1.2. |
System. | Contains classes that are used to implement authorization policy when using the WCF claims-based identity model. Beginning with .NET Framework 4.5 and the integration of Windows Identity Foundation (WIF) into the .NET Framework, the WCF claims-based identity model has been superseded by WIF. WIF provides a claims-based identity object model that can be used to provide authentication and authorization across several Microsoft product stacks, including the CLR, WCF, and ASP.NET. In WIF, authorization policy is implemented by extending the ClaimsAuthorizationManager class. Beginning with .NET 4.5, authorization policy should be implemented by using WIF instead of the classes in the System.IdentityModel.Claims namespace. |
System. | Contains classes that represent WS-Trust artifacts. These include the RequestSecurityToken (RST) and RequestSecurityToken (RSTR) classes and several serializers that can serialize and deserialize between WS-Trust artifacts on the wire and their representation in the object model. Out-of-the-box, Windows Identity Foundation (WIF) contains support for the following WS-Trust specifications: WS-Trust February 2005, WS-Trust 1.3, or WS-Trust 1.4. |
System. | Contains classes that implement authentication in the Windows Communication Foundation (WCF) claims-based identity model. Beginning with .NET Framework 4.5 and the integration of Windows Identity Foundation (WIF) into the .NET Framework, the WCF claims-based identity model has been superseded by WIF. WIF provides a claims-based identity object model that can be used to provide authentication and authorization across several Microsoft product stacks, including the CLR, WCF, and ASP.NET. The WIF classes that represent security tokens and that are used to process security tokens are contained in the System.IdentityModel.Tokens namespace; for example, SecurityToken and SecurityTokenHandler. Beginning with .NET 4.5, the classes in the System.IdentityModel.Tokens namespace should be used instead of those in the System.IdentityModel.Selectors namespace. |
System. | Contains classes that are used in applications built using Windows Identity Foundation (WIF) that perform federated authentication with the WS-Federation protocol. It contains the HTTP Modules, WSFederationAuthenticationModule (WSFAM) and SessionAuthenticationModule (SAM), as well as classes that support their operation. The WSFAM provides handling for the WS-Federation sign-in and sign-out sequences and the SAM provides session management by maintaining and handling cookies. The namespace also contains classes that represent WS-Federation messages (WSFederationMessage), such as sign-in (SignInRequestMessage, SignInResponseMessage) and sign-out messages (SignOutRequestMessage), as well as serializers that serialize and deserialize between the object model and the on-the-wire representations of these messages. |
System. | Contains classes that provide configuration for Windows Identity Foundation (WIF) applications that use the WS-Federation protocol. The classes in this namespace represent settings under the <system.identityModel.services> element. The System.IdentityModel.Services namespace also contains some of the classes that are used to configure WS-Federation. Classes that configure other service and application settings, such as security token handlers, are contained primarily in the System.IdentityModel.Configuration namespace. These settings appear under the <identityConfiguration> element in a configuration file. |
System. | The System.IdentityModel.Services.Tokens contains the MachineKeySessionSecurityTokenHandler class and the MembershipUserNameSecurityTokenHandler class. |
System. | Contains base classes such as SecurityToken, SecurityTokenHandler, and SecurityKeyIdentifierClause, as well as classes that derive from these classes and represent several of the token types, artifacts, and handlers for which the Windows Identity Foundation (WIF) has built in support. This includes classes that contain support for SAML v1.1 and v2.0 tokens, such as: SamlSecurityToken, SamlSecurityTokenHandler, Saml2SecurityToken, and Saml2SecurityTokenHandler. |
System. | Provides classes and interfaces that support queries that use Language-Integrated Query (LINQ). |
System. | Contains classes, interfaces and enumerations that enable language-level code expressions to be represented as objects in the form of expression trees. |
System. | Provides access to a rich set of management information and management events about the system, devices, and applications instrumented to the Windows Management Instrumentation (WMI) infrastructure. Applications and services can query for interesting management information (such as how much free space is left on the disk, what is the current CPU utilization, which database a certain application is connected to, and much more), using classes derived from ManagementObjectSearcher and ManagementQuery, or subscribe to a variety of management events using the ManagementEventWatcher class. The accessible data can be from both managed and unmanaged components in the distributed environment. |
System. | Provides the classes necessary for instrumenting applications for management and exposing their management information and events through WMI to potential consumers. Consumers such as Microsoft Application Center or Microsoft Operations Manager can then manage your application easily, and monitoring and configuring of your application is available for administrator scripts or other applications, both managed as well as unmanaged. Instrumentation of your application is easy to achieve using the InstrumentationClass custom attribute on classes you wish to expose, or using the provided BaseEvent and Instance base classes and the Instrumentation helper class. |
System. | Contains classes for playing sound files and accessing sounds provided by the system. |
System. | Provides classes that allow you to connect to, monitor, and administer message queues on the network and send, receive, or peek messages. |
System. | Contains classes that can be used to extend design-time support for System.Messaging classes. |
System. | Provides a simple programming interface for many of the protocols used on networks today. Classes in the System.Net namespace can be used to develop Windows Store apps or desktop apps. When used in a Windows Store app, classes in the System.Net namespace are affected by network isolation feature, part of the application security model used by the Windows Developer Preview. The appropriate network capabilities must be enabled in the app manifest for a Windows Store app for the system to allow network access by a Windows Store app. For more information, see the Network Isolation for Windows Store Apps. |
System. | Defines the types and enumerations used to define cache policies for resources obtained using the WebRequest and HttpWebRequest classes. |
System. | Contains classes that applications use to programmatically access and update configuration settings for the System.Net namespaces. |
System. | Provides a programming interface for modern HTTP applications. |
System. | Provides support for collections of HTTP headers used by the System.Net.Http namespace. |
System. | Contains classes used to send electronic mail to a Simple Mail Transfer Protocol (SMTP) server for delivery. |
System. | Contains types that are used to represent Multipurpose Internet Mail Exchange (MIME) headers. These types are used with the types in the System.Net.Mail namespace to specify Content-Type, Content-Disposition, and Content-transfer-Encoding headers when using the SmtpClient class to send email. |
System. | Provides access to network traffic data, network address information, and notification of address changes for the local computer. The namespace also contains classes that implement the Ping utility. You can use Ping and related classes to check whether a computer is reachable across the network. |
System. | Provides access to peer networking functionality. |
System. | Enhances System.Net.PeerToPeer networking functionality and provides capabilities for serverless managed collaboration sessions. |
System. | Provides network streams for secure communications between hosts. |
System. | Provides a managed implementation of the Windows Sockets (Winsock) interface for developers who need to tightly control access to the network. |
System. | Provides a managed implementation of the WebSocket interface for developers. |
System. | Contains numeric types that complement the numeric primitives, such as Byte, Double, and Int32, that are defined by .NET. |
System. | Provides classes that enable you to automate the management of print servers, print queues, and print jobs. |
System. | Provides classes that enable rapidly copying the property settings of a print system object to another object of the same type. Also, enables iteration through the properties of print system objects and the discovery of their types at run time, without using reflection. |
System. | Provides interconversion of managed PrintTicket objects and unmanaged Graphics Device Interface (GDI) DEVMODE structures. |
System. | Contains types that retrieve information about assemblies, modules, members, parameters, and other entities in managed code by examining their metadata. These types also can be used to manipulate instances of loaded types, for example to hook up events or to invoke methods. To dynamically create types, use the System.Reflection.Emit namespace. |
System. | Contains classes that enable customized reflection contexts. |
System. | Contains classes that allow a compiler or tool to emit metadata and Microsoft intermediate language (MSIL) and optionally generate a PE file on disk. The primary clients of these classes are script engines and compilers. |
System. | Provides classes and interfaces that allow developers to create, store, and manage various culture-specific resources used in an application. One of the most important classes of the System.Resources namespace is the ResourceManager class. |
System. | Contains the StronglyTypedResourceBuilder class, which provides support for strongly typed resources. Beginning with .NET Framework version 2.0, this compile-time feature encapsulates access to resources by creating classes that contain a set of static read-only (get) properties, thus making it easier to consume resources. |
System. | Contains advanced types that support diverse namespaces such as the System, Runtime, and the Security namespaces. |
System. | Contains types that let you implement caching in .NET applications. |
System. | Contains configuration handler classes for the .NET Framework caching feature. |
System. | Contains types that support .NET Framework hosting environments that use the caching features in ASP.NET. |
System. | Provides functionality for compiler writers who use managed code to specify attributes in metadata that affect the run-time behavior of the common language runtime. |
System. | Defines a set of types that enumerate and define a contract for reliability between the author of some code, and the developers who take a dependency on that code. The types in the System.Runtime.ConstrainedExecution namespace are intended for use in constrained execution regions (CERs). |
System. | Provides classes that support application and component designers in integrated development environments. |
System. | This namespace contains classes that are used by the Windows Communication Foundation (WCF) infrastructure to implement a persistence provider. |
System. | Provides classes for advanced exception handling. |
System. | Contains advanced types that are used in application activation within application domains. |
System. | Provides a wide variety of members that support COM interop and platform invoke services. If you are unfamiliar with these services, see Interoperating with Unmanaged Code. |
System. | Contains managed types that correspond to types used by COM interop. |
System. | Provides internal marshaling support for .NET Framework. |
System. | Contains the IExpando interface which allows modification of an object by adding or removing its members. |
System. | Contains classes that support interoperation between managed code and the Windows Runtime, and that enable the creation of Windows Runtime types with managed code. |
System. | Provides classes and interfaces that allow developers to create and configure distributed applications. Some of the more important classes of the System.Runtime.Remoting namespace are the RemotingConfiguration class, the RemotingServices class, and the ObjRef class. |
System. | Provides classes and objects that support server and client activation of remote objects. |
System. | Contains classes that support and handle channels and channel sinks, which are used as the transport medium when a client calls a method on a remote object. |
System. | Contains channels that use the HTTP protocol to transport messages and objects to and from remote locations. By default, the HTTP channels encode objects and method calls in SOAP format for transmission, but other encoding and decoding formatter sinks can be specified in the configuration properties of a channel. One of the most important classes of the System.Runtime.Remoting.Channels.Http namespace is the HttpChannel class. |
System. | Defines a communication channel for remoting that uses the interprocess communication (IPC) system of the Windows operating system. Because it does not use network communication, the IPC channel is much faster than the HTTP and TCP channels, but it can only be used for communication between application domains on the same physical computer. |
System. | Contains channels that use the TCP protocol to transport messages and objects to and from remote locations. By default, the TCP channels encode objects and method calls in binary format for transmission, but other encoding and decoding formatter sinks can be specified in the configuration properties of a channel. One of the most important classes of the System.Runtime.Remoting.Channels.Tcp namespace is the TcpChannel class. |
System. | Contains objects that define the contexts all objects reside within. A context is an ordered sequence of properties that defines an environment for the objects within it. Contexts are created during the activation process for objects that are configured to require certain automatic services such synchronization, transactions, just-in-time (JIT) activation, security, and so on. Multiple objects can live inside a context. |
System. | Contains classes that manage the lifetime of remote objects. |
System. | Contains classes used to create and transmit messages. The remoting infrastructure uses messages to communicate with remote objects. Messages are used to transmit remote method calls, to activate remote objects, and to communicate information. A message object carries a set of named properties, including action identifiers, envoy information, and parameters. Some of the most important classes of the System.Runtime.Remoting.Messaging namespace are the AsyncResult class, the RemotingSurrogateSelector class, and the ReturnMessage class. |
System. | Contains classes and attributes that can be used to customize generation and processing of SOAP for objects and fields. The classes of this namespace can be used to indicate the SOAPAction header field, type output, XML element name, and the method XML namespace URI. This information is used by the SOAP serializer during SOAP generation and the Soapsuds Tool (Soapsuds.exe) during Web Services Description Language (WSDL) generation. The information specified by the attributes in this namespace can be used on the receiving end of the generated SOAP to customize processing of the remoted method calls and objects. One of the most important classes of the System.Runtime.Remoting.Metadata namespace is SoapAttribute class. The SoapAttribute class is nonfunctional, and can only be used as the base class for all the metadata attributes. |
System. | Contains wrapper classes for the data types that conform to the W3C specification. All date and time types conform to the ISO standards specification. |
System. | Contains the classes that are used by the Soapsuds Tool (Soapsuds.exe) command-line tool and the user code to convert metadata to and from XML schema for the remoting infrastructure. Some of the most important classes of this namespace are the SdlChannelSink class and the MetaData class. |
System. | Contains classes that control and provide functionality for proxies. A proxy is a local object that is an image of a remote object. Proxies enable clients to access objects across remoting boundaries. |
System. | Contains service classes that provide functionality to .NET Framework. One of the most important classes of this namespace is the TrackingServices class. |
System. | Contains classes that can be used for serializing and deserializing objects. Serialization is the process of converting an object or a graph of objects into a linear sequence of bytes for either storage or transmission to another location. Deserialization is the process of taking in stored information and recreating objects from it. |
System. | Contains classes used to read the values found in application configuration under system.xml.serialization section. The classes in this namespace are used by the serialization infrastructure to handle the configuration elements and cannot be used directly. Instead, to configure the DataContractSerializer, create an application configuration file and use the following XML elements. <system.xml.serialization><dataContractSerializer><declaredTypes><add> element for <declaredTypes><knownType> element. |
System. | Provides common enumerations, interfaces, and classes that are used by serialization formatters. |
System. | Contains the BinaryFormatter class, which can be used to serialize and deserialize objects in binary format. |
System. | Contains the SoapFormatter class, which can be used to serialize and deserialize objects in the SOAP format. When building applications that uses the types in this namespace, you must reference the System.Runtime.Serialization.Formatters.Soap.dll assembly. |
System. | Provides classes related to Json serialization. |
System. | Contains advanced types that support versioning in side by side implementations of .NET. |
System. | Provides the underlying structure of the common language runtime security system, including base classes for permissions. |
System. | Provides programming elements that control access to and audit security-related actions on securable objects. |
System. | Provides a set of enumerations that describe the security of a connection. These enumerations include CipherAlgorithmType, ExchangeAlgorithmType, HashAlgorithmType, and SslProtocols. |
System. | Provides support for authentication using extended protection for applications. |
System. | Provides support for configuration of authentication using extended protection for applications. |
System. | Contains classes that implement claims-based identity in .NET, including classes that represent claims, claims-based identities, and claims-based principals. |
System. | Provides cryptographic services, including secure encoding and decoding of data, as well as many other operations, such as hashing, random number generation, and message authentication. For more information, see Cryptographic Services. |
System. | Provides programming elements for Public Key Cryptography Standards (PKCS), including methods for signing data, exchanging keys, requesting certificates, public key encryption and decryption, and other security functions. |
System. | Contains the common language runtime implementation of the Authenticode X.509 v.3 certificate. This certificate is signed with a private key that uniquely and positively identifies the holder of the certificate. |
System. | Contains classes to support the creation and validation of XML digital signatures. The classes in this namespace implement the World Wide Web Consortium Recommendation, XML-Signature Syntax and Processing. |
System. | Defines classes that control access to operations and resources based on policy. |
System. | Contains code groups, membership conditions, and evidence. These three types of classes are used to create the rules applied by the common language runtime security policy system. Evidence classes are the input to security policy and membership conditions are the switches; together these create policy statements and determine the granted permission set. Policy levels and code groups are the structure of the policy hierarchy. Code groups are the encapsulation of a rule and are arranged hierarchically in a policy level. |
System. | Defines a principal object that represents the security context under which code is running. For more information, see Role-Based Security. |
System. | Provides types to support rights management of application-created content such as that stored in a Package or XpsDocument. |
System. | Provides classes related to the service model. |
System. | Provides classes related to service model activation. |
System. | Represents the configuration settings for the SMSvcHost.exe tool. This namespace represents the configuration elements that can be configured in the SMSvcHost.exe.config file. Specifically, it includes all machine-wide settings that need to be configured. |
System. | Contains classes that allow you to send messages to and receive messages from workflows. These activities are used when writing workflow services and allow you to define how messages are sent and received in a workflow. |
System. | Contains the WorkflowServiceHostFactory that provides instances of WorkflowServiceHost in managed hosting environments where the host instance is created dynamically in response to incoming messages. |
System. | Contains classes used to configure workflow services. These classes allow you to apply service and endpoint behaviors and configure tracking. |
System. | Contains classes that enable you to control various behaviors related to workflow services. |
System. | Provides classes related to service model presentation activities. |
System. | Contains factories that create Receive/SendReply and Send/ReceiveReply activity pairs. |
System. | Contains classes used to create tracking records for a workflow service instance. Tracking records are created by created by the workflow runtime during the execution of a workflow instance, and are sent to registered tracking participants. |
System. | Contains classes used to configure tracking for service hosted workflows. These classes allow you to specify the tracking information you want your workflow service to generate. |
System. | Provides classes related to service model channels. |
System. | Defines classes needed for integration with COM applications. |
System. | Provides classes related to service model configuration. |
System. | Provides classes related to the service model description. |
System. | Contains an enumeration that is used to configure performance counters for diagnostics purposes. |
System. | Contains the classes required for the creation and use of discoverable services. These classes implement the WS-Discovery protocol for Windows Communication Foundation (WCF). |
System. | Contains classes that allow you to configure discovery settings in a configuration file. |
System. | Contains the classes required for the creation and use of discoverable services. These classes implement the WS-Discovery version 1.1 protocol for Windows Communication Foundation (WCF). |
System. | Contains the classes required for the creation and use of discoverable services. These classes implement the April 2005 version of the WS-Discovery protocol for Windows Communication Foundation (WCF). |
System. | Contains the classes required for the creation and use of discoverable services. These classes implement the Committee Draft 1 version of the WS-Discovery protocol for Windows Communication Foundation (WCF). |
System. | Provides classes related to dispatching the service model. |
System. | Contains classes that relate to Microsoft Message Queuing Service (MSMQ) integration, which allows communication between MSMQ applications and Windows Communication Foundation (WCF) applications. |
System. | Contains classes that allow developers to customize and extend the Peer Name Resolution Protocol service. |
System. | Contains classes that allow workflow services (WCF services implemented as workflows) to be persisted into the persistence store. |
System. | This namespace contains classes that are used to configure and manage the WCF RoutingService. |
System. | This namespace contains configuration classes that are used by the Windows Communication Foundation (WCF) infrastructure to convert XML into Common Language Runtime (CLR) types. You can also manipulate these classes directly for extensibility purposes. |
System. | Contains general security-related types. |
System. | Deals with security tokens and certificates. |
System. | Provides classes related to service model syndication. |
System. | Provides classes related to using the service model on the web. |
System. | Provides utility classes to enable the serialization of Windows Communication Foundation (WCF) entities to XAML. |
System. | Provides classes that allow you to implement, install, and control Windows service applications. Services are long-running executables that run without a user interface. Implementing a service involves inheriting from the ServiceBase class and defining specific behavior to process when start, stop, pause, and continue commands are passed in, as well as custom behavior and actions to take when the system shuts down. |
System. | Contains classes that can be used to extend design-time support for Windows services applications. |
System. | Contains a single class, SpeechAudioFormatInfo, that contains information about the format of the audio that is being input to the speech recognition engine, or being output from the speech synthesis engine. |
System. | Contains Windows Desktop Speech technology types for implementing speech recognition. |
System. | With the members of the System.Speech.Recognition.SrgsGrammar namespace, you can programmatically create grammars that comply with the W3C Speech Recognition Grammar Specification Version 1.0 (SRGS). |
System. | Contains classes for initializing and configuring a speech synthesis engine, for creating prompts, for generating speech, for responding to events, and for modifying voice characteristics. |
System. | Supports the creation of Speech Synthesis Markup Language (SSML) based custom engines for rendering text to speech (TTS). |
System. | Contains classes that represent ASCII and Unicode character encodings; abstract base classes for converting blocks of characters to and from blocks of bytes; and a helper class that manipulates and formats String objects without creating intermediate instances of String. |
System. | Provides regular expression functionality that may be used from any platform or language that runs within .NET. In addition to the types contained in this namespace, the RegexStringValidator class enables you to determine whether a particular string conforms to a regular expression pattern. |
System. | Provides classes and interfaces that enable multithreaded programming. In addition to classes for synchronizing thread activities and access to data (Mutex, Monitor, Interlocked, AutoResetEvent, and so on), this namespace includes a ThreadPool class that allows you to use a pool of system-supplied threads, and a Timer class that executes callback methods on thread pool threads. |
System. | Provides types that simplify the work of writing concurrent and asynchronous code. The main types are Task which represents an asynchronous operation that can be waited on and cancelled, and Task<TResult>, which is a task that can return a value. The TaskFactory class provides static methods for creating and starting tasks, and the TaskScheduler class provides the default thread scheduling infrastructure. |
System. | Provides the Timer component, which allows you to raise an event on a specified interval. |
System. | Contains classes that allow you to write your own transactional application and resource manager. Specifically, you can create and participate in a transaction (local or distributed) with one or multiple participants. |
System. | Contains classes that describe configuration options used by System.Transactions classes. |
System. | For .NET Core and .NET 5+, this namespace contains the HttpUtility class. For .NET Framework, this namespace contains classes and interfaces that enable browser-server communication. These classes include the HttpRequest class, which provides extensive information about the current HTTP request; the HttpResponse class, which manages HTTP output to the client; and the HttpServerUtility class, which provides access to server-side utilities and processes. System.Web also includes classes for cookie manipulation, file transfer, exception information, and output cache control in .NET Framework. |
System. | Provides classes that enable you to access ASP.NET forms authentication, roles, and profiles application services as Windows Communication Foundation (WCF) services. |
System. | Provides classes for caching frequently used data on the server. |
System. | Provides classes that support access in Windows-based applications to the Microsoft Ajax authentication, roles, and profiles services. |
System. | Contains client service providers and other classes that support access in Windows-based applications to the Microsoft Ajax authentication, roles, and profile services. |
System. | Contains classes for generating and compiling custom file types within the ASP.NET build environment. |
System. | Contains classes that are used to set up ASP.NET configuration. |
System. | Contains configuration types intended for internal use only. |
System. | Contains classes that provide the core functionality for ASP.NET Dynamic Data. It also provides extensibility features that let you customize dynamic data behavior. |
System. | Contains classes that provide design-time support for the classes in the System.Web.DynamicData namespace. |
System. | Contains classes that define the core functionality for ASP.NET Dynamic Data providers. |
System. | Contains HTTP handler classes that process HTTP requests to a Web server. |
System. | Provides the functionality for hosting ASP.NET applications from managed applications outside Microsoft Internet Information Services (IIS). |
System. | Contains types that provide information about current page execution, that include execution listeners and instrumentation, and that include methods that are called before and after view engine renders output. |
System. | Contains classes that enable you to construct and send messages using the CDOSYS (Collaboration Data Objects for Windows 2000) message component. The mail message is delivered either through the SMTP mail service built into Microsoft Windows 2000 or through an arbitrary SMTP server. The classes in this namespace can be used from ASP.NET or from any managed application. |
System. | Contains classes and interfaces for managing and monitoring the health of Web applications. |
System. | Contains the core capabilities, including authentication and error handling, required for building ASP.NET mobile Web applications. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site. |
System. | Provides classes that enable you to bind data objects to ASP.NET Web Forms server controls. |
System. | Contains classes that are used to work with ASP.NET user profiles in Web server applications. |
System. | Contains classes that are used to parse expressions from a LinqDataSource control into a language-integrated query (LINQ). |
System. | Provides precompiled regular expressions that can be used to parse ASP.NET files. All members of the System.Web.RegularExpressions namespace are descendants of the Regex class. |
System. | Provides classes that are used with URL routing, which enables you to use URLs that do not map to a physical file. |
System. | Contains classes that provide script resource information. |
System. | Contains classes that provide JavaScript Object Notation (JSON) serialization and deserialization for managed types. It also provides extensibility features to customize serialization behavior. |
System. | Provides attributes that let you customize Web service support for AJAX functionality in ASP.NET. |
System. | Contains classes that are used to implement ASP.NET security in Web server applications. |
System. | Contains methods that you can use to encode strings in order help you protect your application against cross-site scripting (XSS) attacks and LDAP injection attacks. |
System. | Contains classes that enable you to create XML Web services using ASP.NET and XML Web service clients. XML Web services are applications that provide the ability to exchange messages in a loosely coupled environment using standard protocols such as HTTP, XML, XSD, SOAP, and WSDL. XML Web services enable the building of modular applications within and across companies in heterogeneous environments making them interoperable with a broad variety of implementations, platforms and devices. The SOAP-based XML messages of these applications can have well-defined (structured and typed), or loosely defined parts (using arbitrary XML). The ability of the messages to evolve over time without breaking the protocol is fundamental to the flexibility and robustness of XML Web services as a building block for the future of the Web. |
System. | Contains classes that configure how XML Web services created using ASP.NET run. |
System. | Contains classes that enable you to publicly describe an XML Web service by using the Web Services Description Language (WSDL). Each class in this namespace corresponds to a specific element in the WSDL specification, and the class hierarchy corresponds to the XML structure of a valid WSDL document. For more information about WSDL, see the WSDL specification. |
System. | Contains classes that allows XML Web service clients to locate the available XML Web services on a Web server through a process called XML Web services Discovery. |
System. | Contains classes that define the protocols used to transmit data across the wire during the communication between XML Web service clients and XML Web services created using ASP.NET. |
System. | Provides classes and interfaces that enable storage of data specific to a single client within a web application on the server. The session-state data is used to give the client the appearance of a persistent connection with the application. State information can be stored within local process memory or, for web farm configurations, it can be stored out of process using either the ASP.NET State service or a Microsoft SQL Server database. |
System. | Provides classes and interfaces that enable you to create ASP.NET server controls and ASP.NET Web pages for the user interface of your ASP.NET Web applications. |
System. | Contains the base classes for control adapters and page adapters. You can use these adapters to override the life-cycle states of pages and controls. This is useful if you want to modify a control's markup or behavior for new markup standards or for specific browsers. |
System. | Contains methods and properties for the Chart Web server control. |
System. | Contains classes that can be used to extend design-time support for ASP.NET Web pages and for Web server controls. |
System. | Contains classes that can be used to extend design-time support for ASP.NET Web page directives. |
System. | Contains classes that provide design-time support for the classes in the System.Web.UI.MobileControls namespace. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site. |
System. | Contains classes that provide design-time support for data type converters in mobile controls. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site. |
System. | Contains classes that can be used to extend design-time support for Web server controls. |
System. | Contains classes that provide design-time support for controls derived from classes in the System.Web.UI.WebControls.WebParts namespace. |
System. | Contains classes that allow you to create HTML server controls on a Web Forms page. HTML server controls run on the server and map directly to standard HTML tags supported by most browsers. This allows you to programmatically control the HTML elements on a Web Forms page. |
System. | Contains a set of ASP.NET server controls that can render your application for different mobile devices. The APIs in this namespace are obsolete. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site. |
System. | Contains classes you can use to override the life-cycle stages of a mobile control to modify its default HTML, CHTML, or WML markup or behavior for new markup standards or for specific browsers and mobile devices. The APIs in this namespace are obsolete. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site. |
System. | Contains classes you can use to override the life-cycle stages of a mobile control to modify its default XHTML markup or behavior for new markup standards or for specific browsers and mobile devices. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site. |
System. | Contains classes that allow you to create Web server controls on a Web page. Web server controls run on the server and include form controls such as buttons and text boxes. They also include special-purpose controls such as a calendar. Because Web server controls run on the server, you can programmatically control these elements. Although Web server controls are rendered as HTML, their object model does not necessarily reflect HTML syntax. |
System. | Contains classes that you can use to override the life-cycle stages of a Web control. The classes enable you to modify a control's markup or behavior for new markup standards or for specific browsers. |
System. | Provides classes that enable you to filter data in a Web page by using the QueryExtender control. |
System. | Contains classes and interfaces known collectively as the Web Parts control set. You can use these classes to create Web pages whose appearance and behavior can be modified (personalized) by end users. Each user's personalized settings for a page are saved for future browser sessions. |
System. | Provides classes that enable callback methods to be run under the scope of a transaction and that enable work to be posted to separate threads. |
System. | Contains classes that support adding WebSocket functionality to ASP.NET Web Forms applications. |
System. | Provides several important Windows Presentation Foundation (WPF) base element classes, various classes that support the WPF property system and event logic, and other types that are more broadly consumed by the WPF core and framework. |
System. | Provides classes to support user-created annotations on content displayed in WPF document viewing controls. |
System. | Provides types that define the storage architecture and mediums to save and retrieve user-created annotations. |
System. | Provides support for Windows Presentation Foundation (WPF) UI Automation clients. |
System. | Defines the AutomationPeer base class and a set of types that derive from it that correspond to .NET controls. Each AutomationPeer exposes the corresponding .NET control to Microsoft UI Automation. |
System. | Provides APIs for creating UI Automation providers. |
System. | Contains enumerations that specify text formatting and related behavior for Windows Presentation Foundation (WPF) UI automation. |
System. | Contains reader and writer classes that can consume XAML in BAML form. |
System. | Provides classes to create elements, known as controls, that enable a user to interact with an application. The control classes are at the core of the user's experience with any application because they allow a user to view, select, or enter data or other information. |
System. | Contains base classes and controls that are intended to be used as part of other more complex controls. |
System. | Contains types that are used to create a user interface by using the Microsoft Ribbon for WPF. |
System. | Contains types that are used as layout containers in a Microsoft Ribbon for WPF control. |
System. | Provides classes to support type conversion during serialization in Windows Presentation Foundation (WPF). |
System. | Contains classes used for binding properties to data sources, data source provider classes, and data-specific implementations of collections and views. |
System. | Provides support for Windows Presentation Foundation (WPF) XAML tooling. |
System. | Contains types that support FixedDocument, FlowDocument, and XML Paper Specification (XPS) document creation. |
System. | Provides classes to describe the structure of an XpsDocument in terms of sections, paragraphs, figures, bulleted or numbered lists, and tables. |
System. | Provides types that support the creation and use of run-time accessible plug-in serializers that read and write documents in different data formats. |
System. | Contains classes for creating Windows-based applications that take full advantage of the rich user interface features available in the Microsoft Windows operating system. |
System. | Contains helper classes that Visual Studio uses to display property pages while in design mode. |
System. | Contains methods and properties for the Chart Windows forms control. |
System. | Contains classes that support design-time configuration and behavior for Windows Forms components. These classes consist of designer classes that provide support for Windows Forms components, a set of design-time services; UITypeEditor classes for configuring certain types of properties, and classes for importing ActiveX controls. |
System. | Contains classes for creating custom user interface behavior for components at design time. |
System. | Contains classes that support interoperation of Windows Forms and WPF controls. |
System. | Contains classes for implementing layout behaviors in your form or control. |
System. | Provides internal support for the PropertyGrid control. The classes in this namespace support the .NET infrastructure and aren't intended to be used directly from your code. |
System. | Contains classes for rendering controls and other Windows user interface (UI) elements with visual styles in operating systems that support them. |
System. | Provides classes to interact with and manipulate ink on the Windows Presentation Foundation (WPF) platform. |
System. | Most of the types in this namespace support the Windows Presentation Foundation (WPF) input system. This includes device abstraction classes for mouse, keyboard, and stylus devices, a common input manager class, support for commanding and custom commands, and various utility classes. However, some of the types are applicable beyond WPF. |
System. | Provides functionality for monitoring and responding to a collection of manipulators as a single composite, enabling an application to track the changes to the composite instead of the individual components. |
System. | Provides classes that support manipulating data from a tablet pen on the Windows Presentation Foundation (WPF) platform. These classes offer low-level control over Stylus input and the creation of digital ink Stroke objects. The StylusPlugIn class provides a mechanism for you to implement custom behavior and apply that behavior to the stream of data coming from the stylus device for the optimal performance. |
System. | Provides supporting types for interoperation between Windows Presentation Foundation (WPF) and other technologies such as Windows APIs and provides base classes for other specific interoperation scenarios involving WPF. |
System. | Provides types to support XAML. Some of these types are located in WPF assemblies and are specific to WPF scenarios that involve XAML. Other types in this namespace provide support for .NET XAML Services in general, and don't require referencing WPF assemblies. |
System. | Provides types that assist in the localization of binary XAML (BAML) sources. |
System. | Contains classes that support Extensible Application Markup Language (XAML) in Windows Presentation Foundation (WPF). |
System. | Provides types that enable integration of rich media, including drawings, text, and audio/video content in Windows Presentation Foundation (WPF) applications. |
System. | Provides types that support property animation functionality, including timelines, storyboards, and key frames. |
System. | Contains classes that are used by the MarkupWriter for serialization of Extensible Application Markup Language (XAML). |
System. | Provides types that can be used to apply visual effects to bitmap images. |
System. | Provides types that are used to encode and decode bitmap images. |
System. | Contains types that support 3-D presentation in Windows Presentation Foundation (WPF) applications. |
System. | Contains classes that are used by the MarkupWriter for serialization of Extensible Application Markup Language (XAML). |
System. | Provides types that control formatting of text, typically at a lower level than control-based text presentation or the text object model. |
System. | Provides types that support navigation, including navigating between windows and navigation journaling. |
System. | Provides low-level classes that support the Windows Presentation Foundation (WPF) resource model and the Resources build action. |
System. | Provides access to a library of shapes that can be used in Extensible Application Markup Language (XAML) or code. |
System. | Contains types that provide managed code access to the enhanced functionality of the Windows 7 taskbar. |
System. | Contains types to support the Windows Presentation Foundation (WPF) threading system. |
System. | Provides classes that write XPS documents to a data store or print queue. |
System. | Provides types that allow applications to read and write the components of an XPS document. |
System. | Provides types that support serialization of XPS documents. |
System. | Provides classes related to Windows Workflow Foundation activities. |
System. | Provides classes that represent sections of the configuration file. |
System. | Contains a set of classes that define the conditions and actions that form a rule. |
System. | Contains a set of classes that manage the Rule Set Editor and the Rule Condition Editor dialog boxes. |
System. | Provides classes related to the Windows Workflow Foundation component model. |
System. | Provides classes related to the Windows Workflow Foundation component model compiler. |
System. | Provides classes related to the Windows Workflow Foundation component model designers. |
System. | Provides the infrastructure for managing the serialization of activities and workflows to and from extensible Application Markup Language (XAML) and CodeDOM. |
System. | Provides classes related to workflow runtime. |
System. | Contains classes that are used to configure the workflow runtime engine. |
System. | Contains classes and interfaces for use in debugging workflow instances. |
System. | Provides classes related to Windows Workflow Foundation runtime hosting. |
System. | Contains classes and an interface related to tracking services. |
System. | Provides types that relate to XAML readers and XAML writers. This includes the default implementations of .NET XAML Services and its XAML readers and XAML writers. Also contains types relevant to the XAML type system and other support types related to XAML and .NET XAML Services concepts. |
System. | Contains types that specify permissions for certain XAML loading scenarios, such as loading under partial trust or loading internal types. |
System. | Contains types that support extensibility of the XAML type system. |
System. | Provides standards-based support for processing XML. |
System. | Contains the classes for LINQ to XML. LINQ to XML is an in-memory XML programming interface that enables you to modify XML documents efficiently and easily. |
System. | Provides support for prepopulating the cache with DTDs or XML streams. |
System. | Contains the XML classes that provide standards-based support for XML schema definition language (XSD) schemas. |
System. | Contains classes that are used to serialize objects into XML format documents or streams. |
System. | Contains classes that allow you to customize the code generated from a Web Services Description Language (WSDL) document. |
System. | Contains classes used to read the values found in application configuration files under the <system.xml.serialization> Element section. |
System. | Contains the classes that define a cursor model for navigating and editing XML information items as instances of the XQuery 1.0 and XPath 2.0 Data Model. |
System. | Contains sections of XML configuration. |
System. | Provides support for Extensible Stylesheet Transformation (XSLT) transforms. It supports the W3C XSL Transformations (XSLT) Version 1.0 Recommendation. |
System. | Contains types that are used by the XSL transformation engine. |
UIAutomation | Contains a single type that maps client automation providers. |
Xaml | Contains compiler-generated types that are not intended to be used directly from your code. |