C Sharp File I/O Assignment Help
FILE I/O
- A file is a set of huge source of information in a hard disk
- It has an associated name and address
- Reading and Writing operation in a file is called stream
- The sequence of bytes moving in motion is a stream
- There are 2 main streams existing in c#. They are
- Input Stream and Output Stream.
- Reading data from file is an Input Stream (read) and
- Writing data to the file is an output stream (write).
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Input /Output Classes
The System.IO Namespace includes number of classes for operating files. The classes are
BinaryReader
Binary Writer
Directory
DriveInfo
DirectoryInfo
BufferedStream
FileInfo
File
MemoryStream
FileStream
StreamReader
StringReader
StreamWriter
StringWriter
Path
The FileStream className
The namespace System.IO has the classNameFileStream which is used for reading and writing operations in a file
To open a new or an existing file , an object for the classNameFileStream to be created
Syntax
FileStream object = new FileStream (filename, filemode, fileaccess, fileshare);
Example
FileStream F = new FileStream("sample.txt", FileMode.Open, FileAccess.Read,FileShare.Read);
where
filename can be any valid file name in the disk
FileMode can be Create, Append, , CreateNew, Open, Truncate and OpenOrCreate,
FileAccess can be Read, Write and ReadWrite
FileShare can be Read, Write, ReadWrite, Inheritable, None,
Example
Advanced File Operations in C#
The advanced file operations can be achieved through the classes listed below
StreamReader, StreamWriter , BinaryReader and BinaryWriter
The first two helps in reading and writing into text files
The rear two help in reading and writing into binary files
