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FileStream.SetLength Method

Sets the length of this stream to the given value.

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

public override void SetLength (
	long value
)
public void SetLength (
	long value
)
public override function SetLength (
	value : long
)
Not applicable.

Parameters

value

The new length of the stream.

Exception typeCondition

IOException

An I/O error has occurred.

NotSupportedException

The stream does not support both writing and seeking.

ArgumentOutOfRangeException

Attempted to set the value parameter to less than 0.

This method overrides SetLength.

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 length are undefined.

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

NoteNote:

Use the CanWrite property to determine whether the current instance supports writing, and the CanSeek property to determine whether seeking is supported. For additional information, see CanWrite and CanSeek.

For a list of common I/O tasks, see Common I/O Tasks.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0
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