Windows apps
Collapse the table of content
Expand the table of content
Information
Switch
Switch
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

LazyInitializer Class

.NET Framework (current version)
 

Provides lazy initialization routines.

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

System::Object
  System.Threading::LazyInitializer

C#
C++
F#
VB
Copy 
[HostProtectionAttribute(SecurityAction::LinkDemand, Synchronization = true, 
	ExternalThreading = true)]
public ref class LazyInitializer abstract sealed

NameDescription
System_CAPS_pubmethodSystem_CAPS_staticEnsureInitialized<T>(T%)

Initializes a target reference type with the type's default constructor if it hasn't already been initialized.

System_CAPS_pubmethodSystem_CAPS_staticEnsureInitialized<T>(T%, Boolean%, Object^%)

Initializes a target reference or value type with its default constructor if it hasn't already been initialized.

System_CAPS_pubmethodSystem_CAPS_staticEnsureInitialized<T>(T%, Boolean%, Object^%, Func<T>^)

Initializes a target reference or value type by using a specified function if it hasn't already been initialized.

System_CAPS_pubmethodSystem_CAPS_staticEnsureInitialized<T>(T%, Func<T>^)

Initializes a target reference type by using a specified function if it hasn't already been initialized.

These routines avoid needing to allocate a dedicated, lazy-initialization instance, instead using references to ensure targets have been initialized as they are accessed.

The following example demonstrates how to use EnsureInitialized to lazily initialize a value using a Boolean value to track whether initialization has already happened and an object to use as the mutual exclusion lock.

C#
VB
C++
Copy
No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1

The methods of LazyInitializer are thread-safe and may be called from multiple threads concurrently.

Return to top
Show:
© 2017 Microsoft