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EncoderExceptionFallbackBuffer Class

Throws EncoderFallbackException when an input character cannot be converted to an encoded output byte sequence. This class cannot be inherited.

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

public sealed class EncoderExceptionFallbackBuffer : EncoderFallbackBuffer

A common reason for an encoding or decoding operation to fail is if the underlying encoding class does not provide a mapping between a character and an equivalent byte sequence. If the input character cannot be converted to an output byte sequence, the encoding operation calls the Fallback method, which throws EncoderFallbackException.

The System.Text.EncoderFallbackBuffer class, which represents a data buffer used in an encoding operation, is the base class for the EncoderExceptionFallbackBuffer class. However, instead of a data buffer, the EncoderExceptionFallbackBuffer class represents a standard behavior wherein an exception is thrown if an encoding operation fails. No actual data buffer exists, and the members designed to manipulate such a buffer do no significant work.


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

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

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