Lazy<T> Constructor (Func<T>, LazyThreadSafetyMode)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Initializes a new instance of the Lazy<T> class that uses the specified initialization function and thread safety mode.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- valueFactory
- Type: System.Func<T>
The delegate that is invoked to produce the lazily initialized value when it is needed.
- mode
- Type: System.Threading.LazyThreadSafetyMode
One of the enumeration values that specifies the thread safety mode.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | mode contains an invalid value. |
| ArgumentNullException | valueFactory is null. |
The thread safety mode of a Lazy<T> instance describes the behavior when multiple threads try to initialize the Lazy<T> instance.
Exceptions that are thrown by valueFactory are cached, unless mode is PublicationOnly. For more information, see the System.Threading.LazyThreadSafetyMode enumeration.