Collection<T>.IList.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.ObjectModel
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Private Property Item ( _
index As Integer _
) As Object Implements IList.Item
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
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
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 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
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.