Requests that the common language runtime not call the finalizer for the specified object.
Assembly: mscorlib (in mscorlib.dll)
This method sets a bit in the object header of obj, which the runtime checks when calling finalizers. A finalizer, which is represented by the Object::Finalize method, is used to release unmanaged resources before an object is garbage-collected. If obj does not have a finalizer, the call to the method has no effect.
Objects that implement the IDisposable interface can call this method from the object's IDisposable::Dispose implementation to prevent the garbage collector from calling Object::Finalize on an object that does not require it. Typically, this is done to prevent the finalizer from releasing unmanaged resources that have already been freed by the IDisposable::Dispose implementation.
The following example demonstrates how to use the method in a resource class to prevent a redundant garbage collection from being called. The example uses the dispose pattern to free both managed resources (that is, objects that implement IDisposable) and unmanaged resources.
.NET FrameworkSupported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0
.NET Framework Client ProfileSupported in: 4, 3.5 SP1
Portable Class LibrarySupported in: Portable Class Library
.NET for Windows Store appsSupported in: Windows 8
.NET for Windows Phone appsSupported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.