ConcurrentDictionary<TKey, TValue>.IDictionary.Item Property

Gets or sets the value associated with the specified key.

Namespace:  System.Collections.Concurrent
Assemblies:   System.Collections.Concurrent (in System.Collections.Concurrent.dll)
  mscorlib (in mscorlib.dll)

Object IDictionary.this[
	Object key
] { get; set; }

Parameters

key
Type: System.Object

The key of the value to get or set.

Property Value

Type: System.Object
The value associated with the specified key, or null if key is not in the dictionary or key is of a type that is not assignable to the key type of the System.Collections.Concurrent.ConcurrentDictionary<TKey, TValue>.

Implements

IDictionary.Item

ExceptionCondition
ArgumentNullException

key is null.

ArgumentException

A value is being assigned, and key is of a type that is not assignable to the key type or the value type of the System.Collections.Concurrent.ConcurrentDictionary<TKey, TValue>.

.NET Framework

Supported in: 4.5.3, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Windows Phone 8.1, 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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