This documentation is archived and is not being maintained.

MemoryStream.Capacity Property

Gets or sets the number of bytes allocated for this stream.

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

public virtual int Capacity { get; set; }

Property Value

Type: System.Int32
The length of the usable portion of the buffer for the stream.

ExceptionCondition
ArgumentOutOfRangeException

A capacity is set that is negative or less than the current length of the stream.

ObjectDisposedException

The current stream is closed.

NotSupportedException

set is invoked on a stream whose capacity cannot be modified.

Capacity is the buffer length for system-provided byte arrays. Capacity cannot be set to a value less than the current length of the stream.

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


// Write the stream properties to the console.
Console.WriteLine(
    "Capacity = {0}, Length = {1}, Position = {2}\n",
    memStream.Capacity.ToString(),
    memStream.Length.ToString(),
    memStream.Position.ToString());


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

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.
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