UTF8Encoding Class

Article
01/16/2013

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Represents a UTF-8 encoding of Unicode characters.

Inheritance Hierarchy

System. . :: . .Object
System.Text. . :: . .Encoding
System.Text..::..UTF8Encoding

Namespace: System.Text
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public Class UTF8Encoding _
    Inherits Encoding

public class UTF8Encoding : Encoding

public ref class UTF8Encoding : public Encoding

type UTF8Encoding =  
    class
        inherit Encoding
    end

public class UTF8Encoding extends Encoding

The UTF8Encoding type exposes the following members.

Constructors

	Name	Description
	UTF8Encoding	Initializes a new instance of the UTF8Encoding class.

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Methods

	Name	Description
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetBytes(String)	Encodes the characters in a specified String object into a sequence of bytes. (Overrides Encoding. . :: . .GetBytes(String).)
	GetBytes(String, Int32, Int32, array<Byte> [] () [] [], Int32)	Encodes a set of characters from the specified String into the specified byte array. (Overrides Encoding. . :: . .GetBytes(String, Int32, Int32, array<Byte> [] () [] [], Int32).)
	GetChars(array<Byte> [] () [] [])	Decodes a byte array into an array of characters. (Overrides Encoding. . :: . .GetChars(array<Byte> [] () [] []).)
	GetChars(array<Byte> [] () [] [], Int32, Int32)	Decodes a sequence of bytes from the specified byte array into a set of characters. (Overrides Encoding. . :: . .GetChars(array<Byte> [] () [] [], Int32, Int32).)
	GetDecoder	Obtains a decoder that converts a UTF-8 encoded sequence of bytes into a sequence of Unicode characters. (Overrides Encoding. . :: . .GetDecoder() () () ().)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

Encoding is the process of transforming a set of Unicode characters into a sequence of bytes. Decoding is the process of transforming a sequence of encoded bytes into a set of Unicode characters.

UTF-8 encoding represents each code point as a sequence of one to four bytes.

The encoder can use the big endian byte order (most significant byte first) or the little endian byte order (least significant byte first). It is generally more efficient to store Unicode characters using the native byte order. For example, it is better to use the little endian byte order on little endian platforms, such as Intel computers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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