SetLength Method
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
When overridden in a derived class, sets the length of the current stream.
Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public MustOverride Sub SetLength ( _
value As Long _
)
public abstract void SetLength(
long value
)
public:
virtual void SetLength(
long long value
) abstract
abstract SetLength :
value:int64 -> unit
public abstract function SetLength(
value : long
)
Parameters
- value
Type: System. . :: . .Int64
The desired length of the current stream in bytes.
Remarks
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.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.