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11/18/2011

BinaryWriter Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Writes primitive types in binary to a stream and supports writing strings in a specific encoding.

Inheritance Hierarchy

System.Object
System.IO.BinaryWriter

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

Syntax

'Declaration
<ComVisibleAttribute(True)> _
Public Class BinaryWriter _
    Implements IDisposable

[ComVisibleAttribute(true)]
public class BinaryWriter : IDisposable

The BinaryWriter type exposes the following members.

Constructors

	Name	Description
	BinaryWriter()	Initializes a new instance of the BinaryWriter class that writes to a stream.
	BinaryWriter(Stream)	Initializes a new instance of the BinaryWriter class based on the supplied stream and using UTF-8 as the encoding for strings.
	BinaryWriter(Stream, Encoding)	Initializes a new instance of the BinaryWriter class based on the supplied stream and a specific character encoding.

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Properties

	Name	Description
	BaseStream	Gets the underlying stream of the BinaryWriter.

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Methods

	Name	Description
	Close	Closes the current BinaryWriter and the underlying stream.
	Dispose()	Releases the resources used by the current instance of the BinaryWriter class.
	Dispose(Boolean)	Called by the Dispose method and finalizer to release the managed and unmanaged resources used by the current instance of the BinaryWriter class.
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	Flush	Clears all buffers for the current writer and causes any buffered data to be written to the underlying device.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Seek	Sets the position within the current stream.
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	Write(Boolean)	Writes a one-byte Boolean value to the current stream, with 0 representing false and 1 representing true.
	Write(Byte)	Writes an unsigned byte to the current stream and advances the stream position by one byte.
	Write(array<Byte[])	Writes a byte array to the underlying stream.
	Write(Char)	Writes a Unicode character to the current stream and advances the current position of the stream in accordance with the Encoding used and the specific characters being written to the stream.
	Write(array<Char[])	Writes a character array to the current stream and advances the current position of the stream in accordance with the Encoding used and the specific characters being written to the stream.
	Write(Double)	Writes an eight-byte floating-point value to the current stream and advances the stream position by eight bytes.
	Write(Int16)	Writes a two-byte signed integer to the current stream and advances the stream position by two bytes.
	Write(Int32)	Writes a four-byte signed integer to the current stream and advances the stream position by four bytes.
	Write(Int64)	Writes an eight-byte unsigned integer to the current stream and advances the stream position by eight bytes.
	Write(SByte)	Writes a signed byte to the current stream and advances the stream position by one byte.
	Write(Single)	Writes a four-byte floating-point value to the current stream and advances the stream position by four bytes.
	Write(String)	Writes a length-prefixed string to this stream in the current encoding of the BinaryWriter, and advances the current position of the stream in accordance with the encoding used and the specific characters being written to the stream.
	Write(UInt16)	Writes a two-byte unsigned integer to the current stream and advances the stream position by two bytes.
	Write(UInt32)	Writes a four-byte unsigned integer to the current stream and advances the stream position by four bytes.
	Write(UInt64)	Writes an eight-byte unsigned integer to the current stream and advances the stream position by eight bytes.
	Write(array<Byte[], Int32, Int32)	Writes a region of a byte array to the current stream.
	Write(array<Char[], Int32, Int32)	Writes a section of a character array to the current stream, and advances the current position of the stream in accordance with the Encoding used and perhaps the specific characters being written to the stream.
	Write7BitEncodedInt	Writes a 32-bit integer in a compressed format.

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Fields

	Name	Description
	Null	Specifies a BinaryWriter with no backing store.
	OutStream	Holds the underlying stream.

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Remarks

A derived class can override the methods of this class to give unique character encodings.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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