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Stream.WriteByte Method

Writes a byte to the current position in the stream and advances the position within the stream by one byte.

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

public:
virtual void WriteByte (
	unsigned char value
)
public void WriteByte (
	byte value
)
public function WriteByte (
	value : byte
)

Parameters

value

The byte to write to the stream.

Exception typeCondition

IOException

An I/O error occurs.

NotSupportedException

The stream does not support writing, or the stream is already closed.

ObjectDisposedException

Methods were called after the stream was closed.

For an example of creating a file and writing text to a file, see How to: Write Text to a File. For an example of reading text from a file, see How to: Read Text from a File. For an example of reading from and writing to a binary file, see How to: Read and Write to a Newly Created Data File.

Use the CanWrite property to determine whether the current instance supports writing.

Notes to Implementers The default implementation on Stream creates a new single-byte array and then calls Write. While this is formally correct, it is inefficient. Any stream with an internal buffer should override this method and provide a much more efficient version that writes to the buffer directly, avoiding the extra array allocation on every call.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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