System.IO Namespace
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Contains types that allow reading and writing to files and data streams, and types that provide basic file and directory support.
Classes
BinaryReader |
Reads primitive data types as binary values in a specific encoding. |
BinaryWriter |
Writes primitive types in binary to a stream and supports writing strings in a specific encoding. |
BufferedStream |
Adds a buffering layer to read and write operations on another stream. This class cannot be inherited. |
Directory |
Exposes static methods for creating, moving, and enumerating through directories and subdirectories. This class cannot be inherited. |
DirectoryInfo |
Exposes instance methods for creating, moving, and enumerating through directories and subdirectories. This class cannot be inherited. |
DirectoryNotFoundException |
The exception that is thrown when part of a file or directory cannot be found. |
DriveInfo |
Provides access to information on a drive. |
DriveNotFoundException |
The exception that is thrown when trying to access a drive or share that is not available. |
EndOfStreamException |
The exception that is thrown when reading is attempted past the end of a stream. |
EnumerationOptions |
Provides file and directory enumeration options. |
ErrorEventArgs |
Provides data for the Error event. |
File |
Provides static methods for the creation, copying, deletion, moving, and opening of a single file, and aids in the creation of FileStream objects. |
FileFormatException |
The exception that is thrown when an input file or a data stream that is supposed to conform to a certain file format specification is malformed. |
FileInfo |
Provides properties and instance methods for the creation, copying, deletion, moving, and opening of files, and aids in the creation of FileStream objects. This class cannot be inherited. |
FileLoadException |
The exception that is thrown when a managed assembly is found but cannot be loaded. |
FileNotFoundException |
The exception that is thrown when an attempt to access a file that does not exist on disk fails. |
FileStream |
Provides a Stream for a file, supporting both synchronous and asynchronous read and write operations. |
FileStreamOptions |
Defines a variety of configuration options for FileStream. |
FileSystemAclExtensions |
Provides Windows-specific static extension methods for manipulating Access Control List (ACL) security attributes for files and directories. |
FileSystemEventArgs |
Provides data for the directory events: Changed, Created, Deleted. |
FileSystemInfo |
Provides the base class for both FileInfo and DirectoryInfo objects. |
FileSystemWatcher |
Listens to the file system change notifications and raises events when a directory, or file in a directory, changes. |
InternalBufferOverflowException |
The exception thrown when the internal buffer overflows. |
InvalidDataException |
The exception that is thrown when a data stream is in an invalid format. |
IODescriptionAttribute |
Sets the description visual designers can display when referencing an event, extender, or property. |
IOException |
The exception that is thrown when an I/O error occurs. |
MemoryStream |
Creates a stream whose backing store is memory. |
Path |
Performs operations on String instances that contain file or directory path information. These operations are performed in a cross-platform manner. |
PathTooLongException |
The exception that is thrown when a path or fully qualified file name is longer than the system-defined maximum length. |
PipeException |
Thrown when an error occurs within a named pipe. |
RandomAccess |
Provides offset-based APIs for reading and writing files in a thread-safe manner. |
RenamedEventArgs |
Provides data for the Renamed event. |
Stream |
Provides a generic view of a sequence of bytes. This is an abstract class. |
StreamReader |
Implements a TextReader that reads characters from a byte stream in a particular encoding. |
StreamWriter |
Implements a TextWriter for writing characters to a stream in a particular encoding. |
StringReader |
Implements a TextReader that reads from a string. |
StringWriter |
Implements a TextWriter for writing information to a string. The information is stored in an underlying StringBuilder. |
TextReader |
Represents a reader that can read a sequential series of characters. |
TextWriter |
Represents a writer that can write a sequential series of characters. This class is abstract. |
UnmanagedMemoryAccessor |
Provides random access to unmanaged blocks of memory from managed code. |
UnmanagedMemoryStream |
Provides access to unmanaged blocks of memory from managed code. |
WindowsRuntimeStorageExtensions |
Contains extension methods for the IStorageFile and IStorageFolder interfaces in the Windows Runtime when developing Windows Store apps. |
WindowsRuntimeStreamExtensions |
Contains extension methods for converting between streams in the Windows Runtime and managed streams in the .NET for Windows Store apps. |
Structs
WaitForChangedResult |
Contains information on the change that occurred. |
Enums
DriveType |
Defines constants for drive types, including CDRom, Fixed, Network, NoRootDirectory, Ram, Removable, and Unknown. |
FileAccess |
Defines constants for read, write, or read/write access to a file. |
FileAttributes |
Provides attributes for files and directories. |
FileMode |
Specifies how the operating system should open a file. |
FileOptions |
Represents advanced options for creating a FileStream object. |
FileShare |
Contains constants for controlling the kind of access other operations can have to the same file. |
HandleInheritability |
Specifies whether the underlying handle is inheritable by child processes. |
MatchCasing |
Specifies the type of character casing to match. |
MatchType |
Specifies the type of wildcard matching to use. |
NotifyFilters |
Specifies changes to watch for in a file or folder. |
SearchOption |
Specifies whether to search the current directory, or the current directory and all subdirectories. |
SeekOrigin |
Specifies the position in a stream to use for seeking. |
UnixFileMode |
Represents the Unix filesystem permissions. This enumeration supports a bitwise combination of its member values. |
WatcherChangeTypes |
Changes that might occur to a file or directory. |
Delegates
ErrorEventHandler |
Represents the method that will handle the Error event of a FileSystemWatcher object. |
FileSystemEventHandler |
Represents the method that will handle the Changed, Created, or Deleted event of a FileSystemWatcher class. |
RenamedEventHandler |
Represents the method that will handle the Renamed event of a FileSystemWatcher class. |