SetLength Method

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Sets the length of this stream to the given value.

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

public:
virtual void SetLength(
	long long value
) override

Parameters

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

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.

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