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Lookup(TKey, TElement).Item Property

Gets the collection of values indexed by the specified key.

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)
abstract Item : 
        key:'TKey -> IEnumerable<'TElement> with get 
override Item : 
        key:'TKey -> IEnumerable<'TElement> with get

Parameters

key
Type: TKey

The key of the desired collection of values.

Property Value

Type: System.Collections.Generic.IEnumerable(TElement)
The collection of values indexed by the specified key.

Implements

ILookup(TKey, TElement).Item

This indexed property provides the ability to index a specific collection of values in the Lookup(TKey, TElement) by using the following syntax: myLookup[key] in Visual C# or myLookup(key) in Visual Basic. If the key is not found in the collection, an empty sequence is returned.

The following example demonstrates how to use Item to index directly into a Lookup(TKey, TElement). This code example is part of a larger example provided for the Lookup(TKey, TElement) class.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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