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Encoding.GetEncoder Method

When overridden in a derived class, obtains an encoder that converts a sequence of Unicode characters into an encoded sequence of bytes.

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

public virtual Encoder GetEncoder()

Return Value

Type: System.Text.Encoder
A Encoder that converts a sequence of Unicode characters into an encoded sequence of bytes.

The Encoder.GetBytes method converts sequential blocks of characters into sequential blocks of bytes, in a manner similar to the GetBytes method of this class. However, a Encoder maintains state information between calls so it correctly encodes character sequences that span blocks. The Encoder also preserves trailing characters at the end of data blocks and uses the trailing characters in the next encoding operation. For example, a data block might end with an unmatched high surrogate, and the matching low surrogate might be in the next data block. Therefore, GetDecoder and GetEncoder are useful for network transmission and file operations, because those operations often deal with blocks of data instead of a complete data stream.

Notes to Implementers:

The default implementation returns a Encoder that calls the GetByteCount and GetBytes methods of the current Encoding. Your application must override this method to return a Encoder that maintains its state between calls.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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