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ReadOnlyDictionary<TKey, TValue>.IDictionary<TKey, TValue>.Item Property

.NET Framework 4.5

Gets the element that has the specified key.

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

TValue IDictionary<TKey, TValue>.this[
	TKey key
] { get; set; }

Parameters

key
Type: TKey

The key of the element to get or set.

Property Value

Type: TValue
The element that has the specified key.

Implements

IDictionary<TKey, TValue>.Item

ExceptionCondition
ArgumentNullException

key is null.

KeyNotFoundException

The property is retrieved and key is not found.

NotSupportedException

The property is set.

This member is an explicit interface member implementation. It can be used only when the ReadOnlyDictionary<TKey, TValue> instance is cast to an IDictionary<TKey, TValue> interface.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5

.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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