Calculates the maximum number of bytes produced by encoding the specified number of characters.
Assembly: mscorlib (in mscorlib.dll)
charCount is less than zero.
The resulting number of bytes is greater than the maximum number that can be returned as an integer.
A fallback occurred (see Character Encoding in the .NET Framework for complete explanation)
To calculate the exact array size required by GetBytes to store the resulting bytes, the application uses GetByteCount. To calculate the maximum array size, the application should use . The GetByteCount method generally allows allocation of less memory, while the method generally executes faster.
is a worst-case number, including the worst case for the currently selected EncoderFallback. If a fallback is chosen with a potentially large string, M can return large values.
In most cases, this method returns reasonable numbers for small strings. For large strings, you might have to choose between using very large buffers and catching errors in the rare case that a more reasonable buffer is exceeded. You might also want to consider a different approach and use GetByteCount or Encoder.Convert.
GetMaxByteCount(N) is not necessarily the same value as N* GetMaxByteCount(1).
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.