Represents a substitute input string that is used when the original input character cannot be encoded. This class cannot be inherited.
Assembly: mscorlib (in mscorlib.dll)
Thetype exposes the following members.
|Equals(Object)||Determines whether the specified Object is equal to the current Object. (Inherited from Object.)|
|Fallback(Char, Int32)||Prepares the replacement fallback buffer to use the current replacement string. (Overrides EncoderFallbackBuffer.Fallback(Char, Int32).)|
|Fallback(Char, Char, Int32)||Indicates whether a replacement string can be used when an input surrogate pair cannot be encoded, or whether the surrogate pair can be ignored. Parameters specify the surrogate pair and the index position of the pair in the input. (Overrides EncoderFallbackBuffer.Fallback(Char, Char, Int32).)|
|Finalize||Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)|
|GetHashCode||Serves as a hash function for a particular type. (Inherited from Object.)|
|GetNextChar||Retrieves the next character in the replacement fallback buffer. (Overrides EncoderFallbackBuffer.GetNextChar().)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|MovePrevious||Causes the next call to the GetNextChar method to access the character position in the replacement fallback buffer prior to the current character position. (Overrides EncoderFallbackBuffer.MovePrevious().)|
|Reset||Initializes all internal state information and data in this instance of . (Overrides EncoderFallbackBuffer.Reset().)|
|ToString||Returns a string that represents the current object. (Inherited from Object.)|
It might not be possible to convert a character to an equivalent encoded byte sequence if no suitable encoding exists. A common reason for an encoding to fail is if the conversion operation uses a code page that cannot represent the character to encode.
If the input character cannot be converted to an output byte sequence, a System.Text.EncoderReplacementFallback object provides a replacement string that is substituted for the original input character. The replacement string initializes the value of the EncoderReplacementFallback object, and the value of the EncoderReplacementFallback object initializes the value of an object. The value of an object is called the replacement fallback buffer. The conversion operation encodes the replacement fallback buffer instead of the original input character, then continues to process the remainder of the input.
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.