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ConcurrentDictionary<TKey, TValue>.Item Property

.NET Framework 4.5

Other Versions

.NET Framework 4

Gets or sets the value associated with the specified key.

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

Syntax

C++

public TValue this[
	TKey key
] { get; set; }

Parameters

key: Type: TKey
The key of the value to get or set.

Property Value

Type: TValue
The value of the key/value pair at the specified index.

Implements

IDictionary<TKey, TValue>.Item

Exceptions

Exception	Condition
ArgumentNullException	key is null.
KeyNotFoundException	The property is retrieved and key does not exist in the collection.

Version Information

.NET Framework

Supported in: 4.5, 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

Platforms

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.

Reference

ConcurrentDictionary<TKey, TValue> Class

System.Collections.Concurrent Namespace

Other Resources

Thread-Safe Collections

How to: Add and Remove Items from a ConcurrentDictionary

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