Stream::SetLength Method
When overridden in a derived class, sets the length of the current stream.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System::Int64
The desired length of the current stream in bytes.
| Exception | Condition |
|---|---|
| IOException | An I/O error occurs. |
| NotSupportedException | The stream does not support both writing and seeking, such as if the stream is constructed from a pipe or console output. |
| ObjectDisposedException | Methods were called after the stream was closed. |
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 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.