System.IO
Namespace
The System.IO namespace 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. |
| 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. |
| FileSystemAclExtensions | |
| 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. |
| 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. |
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 FileStream objects can have to the same file. |
| HandleInheritability |
Specifies whether the underlying handle is inheritable by child processes. |
| 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. |
| 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. |