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Classes

  • AccessViolationException The exception that is thrown when there is an attempt to read or write protected memory.
  • Activator static Contains methods to create types of objects locally or remotely, or obtain references to existing remote objects. This class cannot be inherited.
  • AggregateException Represents one or more errors that occur during application execution.
  • AppContext static Provides members for setting and retrieving data about an application's context.
  • AppDomain sealed Represents an application domain, which is an isolated environment where applications execute. This class cannot be inherited.
  • AppDomainUnloadedException The exception that is thrown when an attempt is made to access an unloaded application domain.
  • ApplicationException Serves as the base class for application-defined exceptions.
  • ApplicationId sealed Contains information used to uniquely identify a manifest-based application. This class cannot be inherited.
  • ArgumentException The exception that is thrown when one of the arguments provided to a method is not valid.
  • ArgumentNullException The exception that is thrown when a null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.
  • ArgumentOutOfRangeException The exception that is thrown when the value of an argument is outside the allowable range of values as defined by the invoked method.
  • ArithmeticException The exception that is thrown for errors in an arithmetic, casting, or conversion operation.
  • Array abstract Provides methods for creating, manipulating, searching, and sorting arrays, thereby serving as the base class for all arrays in the common language runtime.
  • ArrayTypeMismatchException The exception that is thrown when an attempt is made to store an element of the wrong type within an array.
  • AssemblyLoadEventArgs Provides data for the AssemblyLoad event.
  • Attribute abstract Represents the base class for custom attributes.
  • AttributeUsageAttribute sealed Specifies the usage of another attribute class. This class cannot be inherited.
  • BadImageFormatException The exception that is thrown when the file image of a dynamic link library (DLL) or an executable program is invalid.
  • BitConverter static Converts base data types to an array of bytes, and an array of bytes to base data types.
  • Buffer static Manipulates arrays of primitive types.
  • CannotUnloadAppDomainException The exception that is thrown when an attempt to unload an application domain fails.
  • CharEnumerator sealed Supports iterating over a String object and reading its individual characters. This class cannot be inherited.
  • CLSCompliantAttribute sealed Indicates whether a program element is compliant with the Common Language Specification (CLS). This class cannot be inherited.
  • Console static Represents the standard input, output, and error streams for console applications. This class cannot be inherited.
  • ConsoleCancelEventArgs sealed Provides data for the CancelKeyPress event. This class cannot be inherited.
  • ContextBoundObject abstract Defines the base class for all context-bound classes.
  • ContextMarshalException The exception that is thrown when an attempt to marshal an object across a context boundary fails.
  • ContextStaticAttribute Indicates that the value of a static field is unique for a particular context.
  • Convert static Converts a base data type to another base data type.
  • DataMisalignedException sealed The exception that is thrown when a unit of data is read from or written to an address that is not a multiple of the data size. This class cannot be inherited.
  • DBNull sealed Represents a nonexistent value. This class cannot be inherited.
  • Delegate abstract Represents a delegate, which is a data structure that refers to a static method or to a class instance and an instance method of that class.
  • DivideByZeroException The exception that is thrown when there is an attempt to divide an integral or Decimal value by zero.
  • DllNotFoundException The exception that is thrown when a DLL specified in a DLL import cannot be found.
  • DuplicateWaitObjectException The exception that is thrown when an object appears more than once in an array of synchronization objects.
  • EntryPointNotFoundException The exception that is thrown when an attempt to load a class fails due to the absence of an entry method.
  • Environment static Provides information about, and means to manipulate, the current environment and platform. This class cannot be inherited.
  • EventArgs Represents the base class for classes that contain event data, and provides a value to use for events that do not include event data.
  • Exception Represents errors that occur during application execution.
  • ExecutionEngineException sealed The exception that is thrown when there is an internal error in the execution engine of the common language runtime. This class cannot be inherited.
  • FieldAccessException The exception that is thrown when there is an invalid attempt to access a private or protected field inside a class.
  • FileStyleUriParser A customizable parser based on the File scheme.
  • FlagsAttribute Indicates that an enumeration can be treated as a bit field; that is, a set of flags.
  • FormatException The exception that is thrown when the format of an argument is invalid, or when a composite format string is not well formed.
  • FormattableString abstract Represents a composite format string, along with the arguments to be formatted.
  • FtpStyleUriParser A customizable parser based on the File Transfer Protocol (FTP) scheme.
  • GC static Controls the system garbage collector, a service that automatically reclaims unused memory.
  • GenericUriParser A customizable parser for a hierarchical URI.
  • GopherStyleUriParser A customizable parser based on the Gopher scheme.
  • HttpStyleUriParser A customizable parser based on the HTTP scheme.
  • IndexOutOfRangeException sealed The exception that is thrown when an attempt is made to access an element of an array or collection with an index that is outside its bounds.
  • InsufficientExecutionStackException sealed The exception that is thrown when there is insufficient execution stack available to allow most methods to execute.
  • InsufficientMemoryException sealed The exception that is thrown when a check for sufficient available memory fails. This class cannot be inherited.
  • InvalidCastException The exception that is thrown for invalid casting or explicit conversion.
  • InvalidOperationException The exception that is thrown when a method call is invalid for the object's current state.
  • InvalidProgramException sealed The exception that is thrown when a program contains invalid Microsoft intermediate language (MSIL) or metadata. Generally this indicates a bug in the compiler that generated the program.
  • InvalidTimeZoneException The exception that is thrown when time zone information is invalid.
  • Lazy`1 Provides support for lazy initialization.
  • Lazy`2 Provides a lazy indirect reference to an object and its associated metadata for use by the Managed Extensibility Framework.
  • LdapStyleUriParser A customizable parser based on the Lightweight Directory Access Protocol (LDAP) scheme.
  • LoaderOptimizationAttribute sealed Used to set the default loader optimization policy for the main method of an executable application.
  • LocalDataStoreSlot sealed Encapsulates a memory slot to store local data. This class cannot be inherited.
  • MarshalByRefObject abstract Enables access to objects across application domain boundaries in applications that support remoting.
  • Math static Provides constants and static methods for trigonometric, logarithmic, and other common mathematical functions.
  • MathF static Provides constants and static methods for trigonometric, logarithmic, and other common mathematical functions.
  • MemberAccessException The exception that is thrown when an attempt to access a class member fails.
  • MemoryExtensions static Provides extension methods for for the memory- and span-related types, such as Memory`1, ReadOnlyMemory`1, Span`1, and ReadOnlySpan`1.
  • MethodAccessException The exception that is thrown when there is an invalid attempt to access a method, such as accessing a private method from partially trusted code.
  • MissingFieldException The exception that is thrown when there is an attempt to dynamically access a field that does not exist. If a field in a class library has been removed or renamed, recompile any assemblies that reference that library.
  • MissingMemberException The exception that is thrown when there is an attempt to dynamically access a class member that does not exist or that is not declared as public. If a member in a class library has been removed or renamed, recompile any assemblies that reference that library.
  • MissingMethodException The exception that is thrown when there is an attempt to dynamically access a method that does not exist.
  • MTAThreadAttribute sealed Indicates that the COM threading model for an application is multithreaded apartment (MTA).
  • MulticastNotSupportedException sealed The exception that is thrown when there is an attempt to combine two delegates based on the Delegate type instead of the MulticastDelegate type. This class cannot be inherited.
  • NetPipeStyleUriParser A parser based on the NetPipe scheme for the "Indigo" system.
  • NetTcpStyleUriParser A parser based on the NetTcp scheme for the "Indigo" system.
  • NewsStyleUriParser A customizable parser based on the news scheme using the Network News Transfer Protocol (NNTP).
  • NonSerializedAttribute sealed Indicates that a field of a serializable class should not be serialized. This class cannot be inherited.
  • NotFiniteNumberException The exception that is thrown when a floating-point value is positive infinity, negative infinity, or Not-a-Number (NaN).
  • NotImplementedException The exception that is thrown when a requested method or operation is not implemented.
  • NotSupportedException The exception that is thrown when an invoked method is not supported, or when there is an attempt to read, seek, or write to a stream that does not support the invoked functionality.
  • Nullable static Supports a value type that can be assigned null. This class cannot be inherited.
  • NullReferenceException The exception that is thrown when there is an attempt to dereference a null object reference.
  • Object Supports all classes in the .NET class hierarchy and provides low-level services to derived classes. This is the ultimate base class of all .NET classes; it is the root of the type hierarchy.
  • ObjectDisposedException The exception that is thrown when an operation is performed on a disposed object.
  • ObsoleteAttribute sealed Marks the program elements that are no longer in use. This class cannot be inherited.
  • OperatingSystem sealed Represents information about an operating system, such as the version and platform identifier. This class cannot be inherited.
  • OperationCanceledException The exception that is thrown in a thread upon cancellation of an operation that the thread was executing.
  • OutOfMemoryException The exception that is thrown when there is not enough memory to continue the execution of a program.
  • OverflowException The exception that is thrown when an arithmetic, casting, or conversion operation in a checked context results in an overflow.
  • ParamArrayAttribute sealed Indicates that a method will allow a variable number of arguments in its invocation. This class cannot be inherited.
  • PlatformNotSupportedException The exception that is thrown when a feature does not run on a particular platform.
  • Progress`1 Provides an IProgress`1 that invokes callbacks for each reported progress value.
  • Random Represents a pseudo-random number generator, which is a device that produces a sequence of numbers that meet certain statistical requirements for randomness.
  • RankException The exception that is thrown when an array with the wrong number of dimensions is passed to a method.
  • ResolveEventArgs Provides data for loader resolution events, such as the TypeResolve, ResourceResolve, ReflectionOnlyAssemblyResolve, and AssemblyResolve events.
  • SerializableAttribute sealed Indicates that a class can be serialized. This class cannot be inherited.
  • StackOverflowException sealed The exception that is thrown when the execution stack overflows because it contains too many nested method calls. This class cannot be inherited.
  • STAThreadAttribute sealed Indicates that the COM threading model for an application is single-threaded apartment (STA).
  • String sealed Represents text as a sequence of UTF-16 code units.
  • StringComparer abstract Represents a string comparison operation that uses specific case and culture-based or ordinal comparison rules.
  • StringNormalizationExtensions static Provides extension methods to work with string normalization.
  • SystemException Serves as the base class for system exceptions namespace.
  • ThreadStaticAttribute Indicates that the value of a static field is unique for each thread.
  • TimeoutException The exception that is thrown when the time allotted for a process or operation has expired.
  • TimeZone abstract Represents a time zone.
  • TimeZoneInfo sealed Represents any time zone in the world.
  • TimeZoneNotFoundException The exception that is thrown when a time zone cannot be found.
  • Tuple static Provides static methods for creating tuple objects.
  • TupleExtensions static Provides extension methods for tuples to interoperate with language support for tuples in C#.
  • Tuple`1 Represents a 1-tuple, or singleton.
  • Tuple`2 Represents a 2-tuple, or pair.
  • Tuple`3 Represents a 3-tuple, or triple.
  • Tuple`4 Represents a 4-tuple, or quadruple.
  • Tuple`5 Represents a 5-tuple, or quintuple.
  • Tuple`6 Represents a 6-tuple, or sextuple.
  • Tuple`7 Represents a 7-tuple, or septuple.
  • Tuple`8 Represents an n-tuple, where n is 8 or greater.
  • Type abstract Represents type declarations: class types, interface types, array types, value types, enumeration types, type parameters, generic type definitions, and open or closed constructed generic types.
  • TypeAccessException The exception that is thrown when a method attempts to use a type that it does not have access to.
  • TypeInitializationException sealed The exception that is thrown as a wrapper around the exception thrown by the class initializer. This class cannot be inherited.
  • TypeLoadException The exception that is thrown when type-loading failures occur.
  • TypeUnloadedException The exception that is thrown when there is an attempt to access an unloaded class.
  • UnauthorizedAccessException The exception that is thrown when the operating system denies access because of an I/O error or a specific type of security error.
  • UnhandledExceptionEventArgs Provides data for the event that is raised when there is an exception that is not handled in any application domain.
  • Uri Provides an object representation of a uniform resource identifier (URI) and easy access to the parts of the URI.
  • UriBuilder Provides a custom constructor for uniform resource identifiers (URIs) and modifies URIs for the Uri class.
  • UriFormatException The exception that is thrown when an invalid Uniform Resource Identifier (URI) is detected.
  • UriParser abstract Parses a new URI scheme. This is an abstract class.
  • UriTypeConverter Converts a String type to a Uri type, and vice versa.
  • ValueType abstract Provides the base class for value types.
  • Version sealed Represents the version number of an assembly, operating system, or the common language runtime. This class cannot be inherited.
  • WeakReference Represents a weak reference, which references an object while still allowing that object to be reclaimed by garbage collection.
  • WeakReference`1 sealed Represents a typed weak reference, which references an object while still allowing that object to be reclaimed by garbage collection.

Structures

  • ArraySegment`1 Delimits a section of a one-dimensional array.
  • Boolean Represents a Boolean (true or false) value.
  • Byte Represents an 8-bit unsigned integer.
  • Char Represents a character as a UTF-16 code unit.
  • ConsoleKeyInfo Describes the console key that was pressed, including the character represented by the console key and the state of the SHIFT, ALT, and CTRL modifier keys.
  • DateTime Represents an instant in time, typically expressed as a date and time of day.
  • DateTimeOffset Represents a point in time, typically expressed as a date and time of day, relative to Coordinated Universal Time (UTC).
  • Decimal Represents a decimal floating-point number.
  • Double Represents a double-precision floating-point number.
  • Enum Provides the base class for enumerations.
  • Guid Represents a globally unique identifier (GUID).
  • HashCode Combines the hash code for multiple values into a single hash code.
  • Index Represent a type can be used to index a collection either from the start or the end.
  • Int16 Represents a 16-bit signed integer.
  • Int32 Represents a 32-bit signed integer.
  • Int64 Represents a 64-bit signed integer.
  • IntPtr A platform-specific type that is used to represent a pointer or a handle.
  • Memory`1 Represents a contiguous region of memory.
  • ModuleHandle Represents a runtime handle for a module.
  • Nullable`1 Represents a value type that can be assigned null.
  • Range Represents a range that has start and end indexes.
  • ReadOnlyMemory`1 Represents a contiguous region of memory, similar to ReadOnlySpan`1. Unlike ReadOnlySpan`1, it is not a byref-like type.
  • ReadOnlySpan`1 Provides a type-safe and memory-safe read-only representation of a contiguous region of arbitrary memory.
  • RuntimeArgumentHandle References a variable-length argument list.
  • RuntimeFieldHandle Represents a field using an internal metadata token.
  • RuntimeMethodHandle RuntimeMethodHandle is a handle to the internal metadata representation of a method.
  • RuntimeTypeHandle Represents a type using an internal metadata token.
  • SByte Represents an 8-bit signed integer.
  • SequencePosition Represents a position in a non-contiguous set of memory. Properties of this type should not be interpreted by anything but the type that created it.
  • Single Represents a single-precision floating-point number.
  • Span`1 Provides a type- and memory-safe representation of a contiguous region of arbitrary memory.
  • TimeSpan Represents a time interval.
  • TypedReference Describes objects that contain both a managed pointer to a location and a runtime representation of the type that may be stored at that location.
  • UInt16 Represents a 16-bit unsigned integer.
  • UInt32 Represents a 32-bit unsigned integer.
  • UInt64 Represents a 64-bit unsigned integer.
  • UIntPtr A platform-specific type that is used to represent a pointer or a handle.
  • ValueTuple Provides static methods for creating value tuples.
  • ValueTuple`1 Represents a value tuple with a single component.
  • ValueTuple`2 Represents a value tuple with 2 components.
  • ValueTuple`3 Represents a value tuple with 3 components.
  • ValueTuple`4 Represents a value tuple with 4 components.
  • ValueTuple`5 Represents a value tuple with 5 components.
  • ValueTuple`6 Represents a value tuple with 6 components.
  • ValueTuple`7 Represents a value tuple with 7 components.
  • ValueTuple`8 Represents an n-value tuple, where n is 8 or greater.
  • Void Specifies a return value type for a method that does not return a value.

Interfaces

  • IAsyncDisposable Provides a mechanism for releasing unmanaged resources asynchronously.
  • IAsyncResult Represents the status of an asynchronous operation.
  • ICloneable Supports cloning, which creates a new instance of a class with the same value as an existing instance.
  • IComparable Defines a generalized type-specific comparison method that a value type or class implements to order or sort its instances.
  • IComparable`1 Defines a generalized comparison method that a value type or class implements to create a type-specific comparison method for ordering or sorting its instances.
  • IConvertible Defines methods that convert the value of the implementing reference or value type to a common language runtime type that has an equivalent value.
  • ICustomFormatter Defines a method that supports custom formatting of the value of an object.
  • IDisposable Provides a mechanism for releasing unmanaged resources.
  • IEquatable`1 Defines a generalized method that a value type or class implements to create a type-specific method for determining equality of instances.
  • IFormatProvider Provides a mechanism for retrieving an object to control formatting.
  • IFormattable Provides functionality to format the value of an object into a string representation.
  • IObservable`1 Defines a provider for push-based notification.
  • IObserver`1 Provides a mechanism for receiving push-based notifications.
  • IProgress`1 Defines a provider for progress updates.
  • IServiceProvider Defines a mechanism for retrieving a service object; that is, an object that provides custom support to other objects.

Enumerations

Delegates

  • Action Encapsulates a method that has no parameters and does not return a value.
  • Action`1 Encapsulates a method that has a single parameter and does not return a value.
  • Action`10 Encapsulates a method that has 10 parameters and does not return a value.
  • Action`11 Encapsulates a method that has 11 parameters and does not return a value.
  • Action`12 Encapsulates a method that has 12 parameters and does not return a value.
  • Action`13 Encapsulates a method that has 13 parameters and does not return a value.
  • Action`14 Encapsulates a method that has 14 parameters and does not return a value.
  • Action`15 Encapsulates a method that has 15 parameters and does not return a value.
  • Action`16 Encapsulates a method that has 16 parameters and does not return a value.
  • Action`2 Encapsulates a method that has two parameters and does not return a value.
  • Action`3 Encapsulates a method that has three parameters and does not return a value.
  • Action`4 Encapsulates a method that has four parameters and does not return a value.
  • Action`5 Encapsulates a method that has five parameters and does not return a value.
  • Action`6 Encapsulates a method that has six parameters and does not return a value.
  • Action`7 Encapsulates a method that has seven parameters and does not return a value.
  • Action`8 Encapsulates a method that has eight parameters and does not return a value.
  • Action`9 Encapsulates a method that has nine parameters and does not return a value.
  • AssemblyLoadEventHandler Represents the method that handles the AssemblyLoad event of an AppDomain.
  • AsyncCallback References a method to be called when a corresponding asynchronous operation completes.
  • Comparison`1 Represents the method that compares two objects of the same type.
  • ConsoleCancelEventHandler Represents the method that will handle the CancelKeyPress event of a Console.
  • Converter`2 Represents a method that converts an object from one type to another type.
  • EventHandler Represents the method that will handle an event that has no event data.
  • EventHandler`1 Represents the method that will handle an event when the event provides data.
  • Func`1 Encapsulates a method that has no parameters and returns a value of the type specified by the TResult parameter.
  • Func`10 Encapsulates a method that has nine parameters and returns a value of the type specified by the TResult parameter.
  • Func`11 Encapsulates a method that has 10 parameters and returns a value of the type specified by the TResult parameter.
  • Func`12 Encapsulates a method that has 11 parameters and returns a value of the type specified by the TResult parameter.
  • Func`13 Encapsulates a method that has 12 parameters and returns a value of the type specified by the TResult parameter.
  • Func`14 Encapsulates a method that has 13 parameters and returns a value of the type specified by the TResult parameter.
  • Func`15 Encapsulates a method that has 14 parameters and returns a value of the type specified by the TResult parameter.
  • Func`16 Encapsulates a method that has 15 parameters and returns a value of the type specified by the TResult parameter.
  • Func`17 Encapsulates a method that has 16 parameters and returns a value of the type specified by the TResult parameter.
  • Func`2 Encapsulates a method that has one parameter and returns a value of the type specified by the TResult parameter.
  • Func`3 Encapsulates a method that has two parameters and returns a value of the type specified by the TResult parameter.
  • Func`4 Encapsulates a method that has three parameters and returns a value of the type specified by the TResult parameter.
  • Func`5 Encapsulates a method that has four parameters and returns a value of the type specified by the TResult parameter.
  • Func`6 Encapsulates a method that has five parameters and returns a value of the type specified by the TResult parameter.
  • Func`7 Encapsulates a method that has six parameters and returns a value of the type specified by the TResult parameter.
  • Func`8 Encapsulates a method that has seven parameters and returns a value of the type specified by the TResult parameter.
  • Func`9 Encapsulates a method that has eight parameters and returns a value of the type specified by the TResult parameter.
  • MulticastDelegate Represents a multicast delegate; that is, a delegate that can have more than one element in its invocation list.
  • Predicate`1 Represents the method that defines a set of criteria and determines whether the specified object meets those criteria.
  • ResolveEventHandler Represents a method that handles the TypeResolve, ResourceResolve, or AssemblyResolve event of an AppDomain.
  • UnhandledExceptionEventHandler Represents the method that will handle the event raised by an exception that is not handled by the application domain.

Assemblies