Lazy<T> Class
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Provides support for lazy initialization.
Assembly: mscorlib (in mscorlib.dll)
The Lazy<T> type exposes the following members.
| Name | Description | |
|---|---|---|
 | Lazy<T>() | Initializes a new instance of the Lazy<T> class. When lazy initialization occurs, the default constructor of the target type is used. |
| Lazy<T>(Boolean) | Initializes a new instance of the Lazy<T> class. When lazy initialization occurs, the default constructor of the target type and the specified initialization mode are used. |
| Lazy<T>(Func<T>) | Initializes a new instance of the Lazy<T> class. When lazy initialization occurs, the specified initialization function is used. |
| Lazy<T>(LazyThreadSafetyMode) | Initializes a new instance of the Lazy<T> class that uses the default constructor of T and the specified thread safety mode. |
| Lazy<T>(Func<T>, Boolean) | Initializes a new instance of the Lazy<T> class. When lazy initialization occurs, the specified initialization function and initialization mode are used. |
| Lazy<T>(Func<T>, LazyThreadSafetyMode) | Initializes a new instance of the Lazy<T> class that uses the specified initialization function and thread safety mode. |
| Name | Description | |
|---|---|---|
 | IsValueCreated | Gets a value that indicates whether a value has been created for this Lazy<T> instance. |
| Value | Gets the lazily initialized value of the current Lazy<T> instance. |
| Name | Description | |
|---|---|---|
| Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Creates and returns a string representation of the Lazy<T>::Value property for this instance. (Overrides Object::ToString().) |
Lazy initialization occurs the first time the Lazy<T>::Value property is accessed.
Use an instance of Lazy<T> to defer the creation of a large or resource-intensive object or the execution of a resource-intensive task, particularly when such creation or execution might not occur during the lifetime of the program.
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