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ManagementEnumeratorAttribute Class

The ManagementEnumerator attribute marks a method that returns all the instances of a WMI class.

Namespace:  System.Management.Instrumentation
Assembly:  System.Core (in System.Core.dll)

[AttributeUsageAttribute(AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple = false)]
[HostProtectionAttribute(SecurityAction.LinkDemand, MayLeakOnAbort = true)]
public sealed class ManagementEnumeratorAttribute : ManagementNewInstanceAttribute


The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: MayLeakOnAbort. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

The method must be static and public. It must return a collection of all instances of the WMI class. The collection can be of any type convertible to IEnumerable.

The following example shows how to use the Enumerator attribute to mark a method that is used to enumerate instances of a class. In this case, the Enumerate method uses the Process class to retrieve all of the processes running on the computer.


public static IEnumerable Enumerate()
   Process[] rgProcesses = Process.GetProcesses();
   for (int i = 0; i < rgProcesses.Length; i++)
      yield return new ProcessProvider(rgProcesses[i]);

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5