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MemoryStream Constructor (Int32)

Initializes a new instance of the MemoryStream class with an expandable capacity initialized as specified.

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

'Declaration
Public Sub New ( _
	capacity As Integer _
)
'Usage
Dim capacity As Integer

Dim instance As New MemoryStream(capacity)
public MemoryStream (
	int capacity
)
public function MemoryStream (
	capacity : int
)

Parameters

capacity

The initial size of the internal array in bytes.

Exception typeCondition

ArgumentOutOfRangeException

capacity is negative.

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.

The CanRead, CanSeek, and CanWrite properties are all set to true.

The capacity automatically increases when you use the SetLength method to set the length to a value larger than the capacity of the current stream. Except for a MemoryStream constructed with a byte[] parameter, write operations at the end of a MemoryStream expand the MemoryStream.

This constructor exposes the underlying stream that GetBuffer returns.

This code example is part of a larger example provided for the MemoryStream class.

Dim memStream As New MemoryStream(100)

MemoryStream memStream =  new MemoryStream(100);

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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