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UnmanagedMemoryStream.SetLength Method

Sets the length of a stream to a specified value.

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

public override void SetLength(
	long value
)

Parameters

value
Type: System.Int64
The length of the stream.

ExceptionCondition
IOException

An I/O error has occurred.

ObjectDisposedException

The stream is closed.

NotSupportedException

The underlying memory does not support writing.

- or -

An attempt is made to write to the stream and the CanWrite property is false.

ArgumentOutOfRangeException

The specified value exceeds the capacity of the stream.

- or -

The specified value is negative.

If the given value is less than the current length of the stream, the stream is truncated. If the given value is larger than the current length of the stream, the stream is expanded. If the stream is expanded, the contents of the stream between the old and the new lengths are undefined.

A stream must support both writing and seeking for SetLength to work.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.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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