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[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Sets the length of the current stream to the specified value.
Namespace: System.IO
Assembly: System.IO (in System.IO.dll)
Syntax
'Declaration
Public Overrides Sub SetLength ( _
value As Long _
)
public override void SetLength(
long value
)
public:
virtual void SetLength(
long long value
) override
abstract SetLength :
value:int64 -> unit
override SetLength :
value:int64 -> unit
public override function SetLength(
value : long
)
Parameters
- value
Type: System. . :: . .Int64
The value at which to set the length.
Remarks
This method overrides SetLength.
If the specified value is less than the current length of the stream, the stream is truncated. If after the truncation the current position within the stream is past the end of the stream, the ReadByte method returns -1, the Read method reads zero bytes into the provided byte array, and Write and WriteByte methods append specified bytes at the end of the stream, increasing its length. If the specified value is larger than the current capacity and the stream is resizable, the capacity is increased, and the current position within the stream is unchanged. If the length is increased, the contents of the stream between the old and the new length are initialized to zeros.
Note
A MemoryStream instance must support writing for this method to work. Use the CanWrite property to determine whether the current instance supports writing. For additional information, see CanWrite.
.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.