Byte to ASCII

Question

I received the contents of a text file returned in binary values   Byte   buf   new Byte size   stream   File InputStream  stream Read buf  0  size     How can I convert this to ASCII

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Encoding ASCII GetString buf

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Use   System Text Encoding ASCII GetString buf

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Encoding GetString Method  Byte    convert bytes to a string      When overridden in a derived class  decodes all the bytes in the specified byte array into a string    Namespace   System Text Assembly   mscorlib  in mscorlib dll   Syntax  public virtual string GetString byte   bytes    Parameters  bytes     Type  System Byte       The byte array containing the sequence of bytes to decode    Return Value  Type  System String A String containing the results of decoding the specified sequence of bytes   Exceptions  ArgumentException        - The byte array contains invalid Unicode code points  ArgumentNullException    - bytes is null  DecoderFallbackException - A fallback occurred  see Character Encoding in the  NET Framework for complete explanation  or DecoderFallback is set to DecoderExceptionFallback    Remarks     If the data to be converted is   available only in sequential blocks    such as data read from a stream  or   if the amount of data is so large that   it needs to be divided into smaller   blocks  the application should use the   Decoder or the Encoder provided by the   GetDecoder method or the GetEncoder   method  respectively  of a derived   class       See the Remarks under   Encoding GetChars for more discussion   of decoding techniques and   considerations

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You can use   System Text Encoding ASCII GetString buf     But sometimes you will get a weird number instead of the string you want  In that case  your original string may have some hexadecimal character when you see it  If it s the case  you may want to try this   System Text Encoding UTF8 GetString buf     Or as a last resort   System Text Encoding Default GetString bytearray

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As an alternative to reading a data from a stream to a byte array  you could let the framework handle everything and just use a StreamReader set up with an ASCII encoding to read in the string   That way you don t need to worry about getting the appropriate buffer size or larger data sizes   using  var reader   new StreamReader stream  Encoding ASCII         string theString   reader ReadToEnd           do something with theString

[c#] Byte[] to ASCII

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