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MemoryStream Constructor (Byte[], Boolean)

Initializes a new non-resizable instance of the MemoryStream class based on the specified byte array with the CanWrite property set as specified.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)
public MemoryStream(
	byte[] buffer,
	bool writable
)

Parameters

buffer
Type: System.Byte[]

The array of unsigned bytes from which to create this stream.

writable
Type: System.Boolean

The setting of the CanWrite property, which determines whether the stream supports writing.

ExceptionCondition
ArgumentNullException

buffer is null.

The CanRead and CanSeek properties are both set to true. Capacity is set to the length of the specified byte array.

The length of the stream cannot be set to a value greater than the initial length of the specified byte array; however, the stream can be truncated (see SetLength).

This constructor does not expose the underlying stream. GetBuffer throws UnauthorizedAccessException.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, 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.

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