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ThreadLocal<T>.Value Property

Gets or sets the value of this instance for the current thread.

Namespace:  System.Threading
Assembly:  mscorlib (in mscorlib.dll)

public T Value { get; set; }

Property Value

Type: T
Returns an instance of the object that this ThreadLocal is responsible for initializing.


The ThreadLocal<T> instance has been disposed.


The initialization function attempted to reference Value recursively.


No default constructor is provided and no value factory is supplied.

If this instance was not previously initialized for the current thread, accessing Value will attempt to initialize it. If an initialization function was supplied during the construction, that initialization will happen by invoking the function to retrieve the initial value for Value. Otherwise, the default value of will be used. If an exception is thrown, that exception is cached and thrown on each subsequent access of the property.

.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.