ReadOnlyCollection<T>.IList.Item[Int32] Property

Reference

Definition

Namespace:: System.Collections.ObjectModel

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: ReadOnlyCollection.cs

Source:: ReadOnlyCollection.cs

Source:: ReadOnlyCollection.cs

Important

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

property System::Object ^ System::Collections::IList::Item[int] { System::Object ^ get(int index); void set(int index, System::Object ^ value); };

object System.Collections.IList.Item[int index] { get; set; }

object? System.Collections.IList.Item[int index] { get; set; }

member this.System.Collections.IList.Item(int) : obj with get, set

 Property Item(index As Integer) As Object Implements IList.Item

Parameters

index: Int32

The zero-based index of the element to get.

Property Value

Object

The element at the specified index.

Implements

Item[Int32]

Exceptions

ArgumentOutOfRangeException

index is not a valid index in the IList.

NotSupportedException

Always thrown if the property is set.

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.

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

Applies to