32sql server
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The document provides an overview of input/output streams and serialization in C#. It discusses how streams are used for reading and writing files and describes classes like FileStream, StreamWriter, and StreamReader that provide methods for working with files. It also explains serialization and deserialization in C# - the processes of converting an object into a byte stream and back, and describes how to apply the SerializableAttribute to allow objects to be serialized.
32sql server
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- 2. • A file is a collection of data stored in a disk with a specific name and a directory path. When a file is opened for reading or writing, it becomes a stream. • The stream is basically the sequence of bytes passing through the communication path. There are two main streams: the input stream and theoutput stream. The input stream is used for reading data from file (read operation) and the output stream is used for writing into the file (write operation). • C# I/O Classes • The System.IO namespace has various classes that are used for performing numerous operations with files, such as creating and deleting files, reading from or writing to a file, closing a file etc. • The following table shows some commonly used non- abstract classes in the System.IO namespace:
- 3. • C# FileStream • C# FileStream class provides a stream for file operation. It can be used to perform synchronous and asynchronous read and write operations. By the help of FileStream class, we can easily read and write data into file. • C# FileStream example: writing single byte into file • Let's see the simple example of FileStream class to write single byte of data into file. Here, we are using OpenOrCreate file mode which can be used for read and write operations. • C# StreamWriter • C# StreamWriter class is used to write characters to a
- 4. • C# StreamReader • C# StreamReader class is used to read string from the stream. It inherits TextReader class. It provides Read() and ReadLine() methods to read data from the stream. • C# Serialization • In C#, serialization is the process of converting object into byte stream so that it can be saved to memory, file or database. The reverse process of serialization is called deserialization. • Serialization is internally used in remote applications. • C# SerializableAttribute • To serialize the object, you need to apply SerializableAttribute attribute to the type. If you don't apply SerializableAttribute attribute to the type, SerializationException exception is thrown at
- 6. • C# Deserialization • In C# programming, deserialization is the reverse process of serialization. • It means you can read the object from byte stream. Here, we are going to use BinaryFormatter.Deserialize(stream) method to deserialize the stream.
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