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ConcurrentDictionary<TKey, TValue>.IDictionary.Item Property

Gets or sets the value associated with the specified key.

Namespace:  System.Collections.Concurrent
Assembly:  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 a null reference (Nothing in Visual Basic) if key is not in the dictionary or key is of a type that is not assignable to the key type of the ConcurrentDictionary<TKey, TValue>.

Implements

IDictionary.Item[Object]

ExceptionCondition
ArgumentNullException

key is a null reference (Nothing in Visual Basic).

ArgumentException

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

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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