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ReadByte Method

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: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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