Lazy<T, TMetadata> Constructor (Func<T>, TMetadata, Boolean)

Initializes a new instance of the Lazy<T, TMetadata> class with the specified metadata, factory for the referenced value, and thread safety mode.

Namespace:  System
Assembly:  System.ComponentModel.Composition (in System.ComponentModel.Composition.dll)


Public Sub New ( _
    valueFactory As Func(Of T), _
    metadata As TMetadata, _
    isThreadSafe As Boolean _
public Lazy(
    Func<T> valueFactory,
    TMetadata metadata,
    bool isThreadSafe


  • valueFactory
    Type: System.Func<T>
    A function that returns the referenced value.
  • isThreadSafe
    Type: System.Boolean
    true to make this instance usable concurrently by multiple threads; false to make the instance usable by only one thread at a time.

Version Information


Supported in: 5, 4


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.