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BufferedStream.ReadByte Method

Reads a byte from the underlying stream and returns the byte cast to an int, or returns -1 if reading from the end of the stream.

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

public override int ReadByte()

Return Value

Type: System.Int32
The byte cast to an int, or -1 if reading from the end of the stream.

ExceptionCondition
IOException

An I/O error occurs, such as the stream being closed.

NotSupportedException

The stream does not support reading.

ObjectDisposedException

Methods were called after the stream was closed.

Notes to Implementers

The default implementation on Stream creates a new single-byte array and then calls Read. 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 reads the buffer directly, avoiding the extra array allocation on every call.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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