IList.Item Property

ReadOnlyCollection<T>.IList.Item Property (Int32)

 

Gets the element at the specified index. A NotSupportedException occurs if you try to set the item at the specified index.

Namespace:   System.Collections.ObjectModel
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.

Property Value

Type: System.Object

The element at the specified index.

Exception Condition
ArgumentOutOfRangeException

index is not a valid index in the IList.

NotSupportedException

Always thrown if the property is set.

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.

This member is an explicit interface member implementation. It can be used only when the ReadOnlyCollection<T> instance is cast to an IDisposable interface.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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