MSDN Documentation

System.Runtime Namespace

Provides types that are fundamental to all .NET applications, including types that represent common data types, exceptions, input/output, and much more. This namespace is available in all versions of the .NET Framework and .NET Core.

Namespaces within System.Runtime

• System.Runtime.CompilerServices

  Contains types that enable compiler support for language features. These types are typically used by compilers and are not generally used by application developers.

  • AsyncMethodBuilderAttribute
  • CallerArgumentExpressionAttribute
  • IsReadOnlyAttribute
  • IteratorStateMachineAttribute
• System.Runtime.InteropServices

  Provides a wide variety of services for interoperability with unmanaged code, including COM, Windows, and C++.

  • Marshal
  • ComImportAttribute
  • DllImportAttribute
  • StructLayoutAttribute
• System.Runtime.Loader

  Contains types that enable the loading and unloading of assemblies.

  • AssemblyLoadContext
  • DefaultAssemblyLoadContext
• System.Runtime.Serialization

  Provides types for serializing and deserializing objects.

  • FormatterServices
  • SerializationBinder
  • ISerializable

Key Types in System.Runtime

• Object

  The base class for all types in the .NET Framework, providing methods for comparison, manipulation, and information about the object, its constructors, and its properties.

• String

  Represents text as a sequence of code points. String is an immutable type; that is, an object of type String cannot be changed after it is created.

• Int32

  Represents a 32-bit signed integer.

• Boolean

  Represents a Boolean value (true or false).

• Exception

  The base class for all exceptions in the .NET Framework, providing a foundation for .NET exception handling.