• [アーティクル]

IList<T>.Item Property

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Gets or sets the element at the specified index.

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

Syntax

'Declaration
Property Item ( _
    index As Integer _
) As T

T this[
    int index
] { 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

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.