Item Property

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Gets or sets the element at the specified index.

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

Syntax

'Declaration
Public Overridable Property Item ( _
    index As Integer _
) As Object

public virtual Object this[
    int index
] { get; set; }

public:
virtual property Object^ Item[int index] {
    Object^ get (int index);
    void set (int index, Object^ value);
}

abstract Item : 
        index:int -> Object with get, set
override Item : 
        index:int -> Object with get, set

JScript does not support indexed properties.

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

IList. . :: . .Item

Exceptions

Remarks

ArrayList accepts null Nothing nullptr unit a null reference (Nothing in Visual Basic) as a valid value and allows duplicate elements.

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.

Retrieving the value of this property is an O(1) operation; setting the property is also an O(1) operation.

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.

See Also

Reference

ArrayList Class

System.Collections Namespace