Parameters

value

A long that specifies the new length of the stream.

Exceptions

Type	Reason
System.IO.IOException	An I/O error occurred.
NotSupportedException	The current stream does not support writing and seeking.
ArgumentOutOfRangeException	value is less than zero.

Remarks

If value is less than the current length of the stream, the stream is truncated. If value is greater than the current length of the stream, the stream is expanded, and the contents of the stream between the old and the new length are undefined. A stream is required to support both writing and seeking to implement FileStream.SetLength(long).

Note:

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

This method overrides Stream.SetLength(long).

Requirements

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0