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.NET Development
.NET Framework 3.5
System Namespace
Array Class
Array Properties
 Length Property

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This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
Array..::.Length Property

Gets a 32-bit integer that represents the total number of elements in all the dimensions of the Array.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
Visual Basic (Declaration)
Public ReadOnly Property Length As Integer
Visual Basic (Usage)
Dim instance As Array
Dim value As Integer

value = instance.Length
C#
public int Length { get; }
Visual C++
public:
property int Length {
    int get ();
}
JScript
public function get Length () : int

Property Value

Type: System..::.Int32
A 32-bit integer that represents the total number of elements in all the dimensions of the Array.

Retrieving the value of this property is an O(1) operation.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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Definition of "O(1) operation"      almightylinuxgod   |   Edit   |   Show History

A term for an operation which always takes the same amount of time, and does not depend on the size of the input.

As opposed to:

O(n) - linear (time taken to complete is proportional to size of input)
O(n^3) - exponential (time taken to complete is exponentially proportional to the size of the input)

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See Also      hirak99   |   Edit   |   Show History
See also Array.GetLowerBound, Array.GetUpperBound.
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