System.IO Namespace Reference

Classes
class	BufferedFileStream
class	BufferedStream
class	CommonDialog
class	Directory
class	DynMemStream
class	DynMemStreamSequential
class	File
class	FileDialog
struct	FileEnumerator
struct	FileError
struct	FileFindEntry
class	FileStream
class	FileStreamBase
class	FileSystemWatcher
class	FolderBrowserDialog
class	MemoryStream
class	NamedPipe
class	NullStream
	The NullStream will allow ignore all writes (returning success) and return 'no data' on all reads. More...
class	OpenFileDialog
class	Path
class	SaveFileDialog
struct	SecurityAttributes
class	Shell
class	Stream
class	StreamReader
class	StreamWriter
class	StringStream
class	Substream
class	UnbufferedFileStream

Enumerations
enum	FileOpenError { Unknown, NotFound, NotFile, SharingViolation }
enum	FileReadError { Unknown, Timeout }
enum	FileAccess { Read = 1, Write = 2, ReadWrite = 3 }
enum	FileAttributes {   None = 0, Normal = 1, Directory = 2, SymLink = 4,   Device = 8, ReadOnly = 0x10, Hidden = 0x20, System = 0x40,   Temporary = 0x80, Offline = 0x100, Encrypted = 0x200, Archive = 0x400 }
enum	DialogResult { None = 0, OK = 1, Cancel = 2 }
enum	FileMode {   FileMode.CreateNew = 1, FileMode.Create = 2, FileMode.Open = 3, FileMode.OpenOrCreate = 4,   FileMode.Truncate = 5, FileMode.Append = 6 }
enum	FileOptions {   None = 0, WriteThrough = ((int32)0x80000000), Asynchronous = ((int32)0x40000000), RandomAccess = 0x10000000,   DeleteOnClose = 0x04000000, SequentialScan = 0x08000000, Encrypted = 0x00004000 }
enum	FileShare {   FileShare.None = 0, FileShare.Read = 1, FileShare.Write = 2, FileShare.ReadWrite = 3,   FileShare.Delete = 4, FileShare.Inheritable = 0x10 }
enum	NotifyFilters {   FileName = 0x00000001, DirectoryName = 0x00000002, Attributes = 0x00000004, Size = 0x00000008,   LastWrite = 0x00000010, LastAccess = 0x00000020, CreationTime = 0x00000040, Security = 0x00000100,   All = FileName | DirectoryName | Attributes | Size | LastWrite | LastAccess | CreationTime | Security }
enum	PipeOptions { None = 0, AllowTimeouts = 1 }
enum	WatcherChangeTypes {   FileCreated = 1, DirectoryCreated = 2, Deleted = 4, Changed = 8,   Renamed = 0x10, Failed = 0x20, All = FileCreated | DirectoryCreated | Deleted | Changed | Renamed | Failed }

Variables
return.	Err

Enumeration Type Documentation

FileMode

enum System.IO.FileMode

strong

Enumerator
CreateNew	Creates a new file. Fails if the file already exists.
Create	Creates a new file. If the file already exists, it is overwritten.
Open	Opens an existing file. Fails if the file does not exist.
OpenOrCreate	Opens the file if it exists. Otherwise, creates a new file.
Truncate	Opens an existing file. Once opened, the file is truncated so that its size is zero bytes. The calling process must open the file with at least WRITE access. Fails if the file does not exist.
Append	Opens the file if it exists and seeks to the end. Otherwise, creates a new file.

FileShare

enum System.IO.FileShare

strong

Enumerator
None	No sharing. Any request to open the file (by this process or another process) will fail until the file is closed.
Read	Allows subsequent opening of the file for reading. If this flag is not specified, any request to open the file for reading (by this process or another process) will fail until the file is closed.
Write	Allows subsequent opening of the file for writing. If this flag is not specified, any request to open the file for writing (by this process or another process) will fail until the file is closed.
ReadWrite	Allows subsequent opening of the file for writing or reading. If this flag is not specified, any request to open the file for writing or reading (by this process or another process) will fail until the file is closed.
Delete	Open the file, but allow someone else to delete the file.
Inheritable	Whether the file handle should be inheritable by child processes. Note this is not directly supported like this by Win32.