When overridden in a derived class, sets the length of the current stream.
(in mscorlib.dll)
Visual Basic (Declaration)
Public MustOverride Sub SetLength ( _
value As Long _
)
Dim instance As Stream
Dim value As Long
instance.SetLength(value)
public abstract void SetLength(
long value
)
public:
virtual void SetLength(
long long value
) abstract
public abstract function SetLength(
value : long
)
Parameters
- value
- Type: System..::.Int64
The desired length of the current stream in bytes.
For an example of creating a file and writing text to a file, see How to: Write Text to a File. For an example of reading text from a file, see How to: Read Text from a File. For an example of reading from and writing to a binary file, see How to: Read and Write to a Newly Created Data File.
If the specified value is less than the current length of the stream, the stream is truncated. If the specified 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 not defined.
A stream must support both writing and seeking for SetLength to work.
Use the CanWrite property to determine whether the current instance supports writing, and the CanSeek property to determine whether seeking is supported.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 3.5, 2.0, 1.0
XNA Framework
Supported in: 3.0, 2.0, 1.0
Reference
Other Resources