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List<T>.IList.Item Property

.NET Framework 4.5

Gets or sets the element at the specified index.

Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)

Object IList.this[
	int index
] { get; set; }

Parameters

index: Type: System.Int32
The zero-based index of the element to get or set.

Property Value

Type: System.Object
The element at the specified index.

Implements

IList.Item

Exceptions

Exception	Condition
ArgumentOutOfRangeException	index is not a valid index in the IList.
ArgumentException	The property is set and value is of a type that is not assignable to the IList.

Remarks

The C# language uses the this keyword to define the indexers instead of implementing the IList.Item property. Visual Basic implements IList.Item as a default property, which provides the same indexing functionality.

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

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference

List<T> Class

System.Collections.Generic Namespace

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