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DecoderReplacementFallbackBuffer Class

Represents a substitute output string that is emitted when the original input byte sequence cannot be decoded. This class cannot be inherited.


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

public sealed class DecoderReplacementFallbackBuffer : DecoderFallbackBuffer

The DecoderReplacementFallbackBuffer type exposes the following members.

Public methodDecoderReplacementFallbackBufferInitializes a new instance of the DecoderReplacementFallbackBuffer class using the value of a DecoderReplacementFallback object.

Public propertyRemainingGets the number of characters in the replacement fallback buffer that remain to be processed. (Overrides DecoderFallbackBuffer.Remaining.)

Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Public methodFallbackPrepares the replacement fallback buffer to use the current replacement string. (Overrides DecoderFallbackBuffer.Fallback(Byte[], Int32).)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetNextCharRetrieves the next character in the replacement fallback buffer. (Overrides DecoderFallbackBuffer.GetNextChar().)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodMovePreviousCauses the next call to GetNextChar to access the character position in the replacement fallback buffer prior to the current character position. (Overrides DecoderFallbackBuffer.MovePrevious().)
Public methodResetInitializes all internal state information and data in the DecoderReplacementFallbackBuffer object. (Overrides DecoderFallbackBuffer.Reset().)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

It might not be possible to convert an encoded byte sequence to an equivalent character if no suitable decoding exists. A common reason for a decoding to fail is that the conversion operation uses a code page that cannot represent the character to decode.

If the input byte sequence cannot be converted to an output character, a System.Text.DecoderReplacementFallback object provides a replacement string that is substituted for the output character. The replacement string initializes the value of the DecoderReplacementFallback object, and the value of the DecoderReplacementFallback object initializes the value of a DecoderReplacementFallbackBuffer object. The value of a DecoderReplacementFallbackBuffer object is called the replacement fallback buffer. The conversion operation uses the replacement fallback buffer to emit a replacement string instead of a decoded character, then continues to process the remainder of the input.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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