IList(T).Item Property (System.Collections.Generic)

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.NET Framework Class Library

IList<T>.Item Property

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Gets or sets the element at the specified index.

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

Syntax

Visual Basic

Property Item ( _
	index As Integer _
) As T

T this[
	int index
] { get; set; }

Visual C++

property T Item[int index] {
	T get (int index);
	void set (int index, T value);
}

abstract Item : 'T with get, set

Parameters

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

Property Value

Type: T
The element at the specified index.

Exceptions

Exception	Condition
ArgumentOutOfRangeException	index is not a valid index in the IList<T>.
NotSupportedException	The property is set and the IList<T> is read-only.

Remarks

This property provides the ability to access a specific element in the collection by using the following syntax: myCollection[index].

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

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

Platforms

Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, 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

IList<T> Interface

System.Collections.Generic Namespace

ICollection<T>.IsReadOnly