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DecoderReplacementFallback Class

Provides a failure-handling mechanism, called a fallback, for an encoded input byte sequence that cannot be converted to an output character. The fallback emits a user-specified replacement string instead of a decoded input byte sequence. This class cannot be inherited.


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

type DecoderReplacementFallback =  
        inherit DecoderFallback 

The DecoderReplacementFallback type exposes the following members.

Public methodDecoderReplacementFallback()Initializes a new instance of the DecoderReplacementFallback class.
Public methodDecoderReplacementFallback(String)Initializes a new instance of the DecoderReplacementFallback class using a specified replacement string.

Public propertyDefaultStringGets the replacement string that is the value of the DecoderReplacementFallback object.
Public propertyMaxCharCountGets the number of characters in the replacement string for the DecoderReplacementFallback object. (Overrides DecoderFallback.MaxCharCount.)

Public methodCreateFallbackBufferCreates a DecoderFallbackBuffer object that is initialized with the replacement string of this DecoderReplacementFallback object. (Overrides DecoderFallback.CreateFallbackBuffer().)
Public methodEqualsIndicates whether the value of a specified object is equal to the DecoderReplacementFallback object. (Overrides Object.Equals(Object).)
Public methodGetHashCodeRetrieves the hash code for the value of the DecoderReplacementFallback object. (Overrides Object.GetHashCode().)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

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 an input byte sequence cannot be converted to an output character, a DecoderReplacementFallback object emits a replacement string into the output to represent the original input byte sequence. The conversion process then continues to decode the remainder of the original input.

The value of a DecoderReplacementFallback object is the replacement string used to initialize that object.

The following code example demonstrates the DecoderReplacementFallback class.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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.
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