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MethodData Class

Contains information about a WMI method.


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

public class MethodData

The MethodData type exposes the following members.

Public propertyInParametersGets the input parameters to the method. Each parameter is described as a property in the object. If a parameter is both in and out, it appears in both the InParameters and OutParameters properties.
Public propertyNameGets the name of the method.
Public propertyOriginGets the name of the management class in which the method was first introduced in the class inheritance hierarchy.
Public propertyOutParametersGets the output parameters to the method. Each parameter is described as a property in the object. If a parameter is both in and out, it will appear in both the InParameters and OutParameters properties.
Public propertyQualifiersGets a collection of qualifiers defined in the method. Each element is of type QualifierData and contains information such as the qualifier name, value, and flavor.

Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

The following example lists information about the Win32_Process.Create method using the MethodData class. For more information on the Win32_Process class, see the Windows Management Instrumentation documentation in the MSDN Library at

using System;
using System.Management;

public class Sample 
    public static void Main() 

        // Get the WMI class
        ManagementClass processClass = 
            new ManagementClass("Win32_Process");
        processClass.Options.UseAmendedQualifiers = true;

        // Get the methods in the class
        MethodDataCollection methods =

        // display the method names
        Console.WriteLine("Method Name: ");
        foreach (MethodData method in methods)
                Console.WriteLine("Description: " +

                Console.WriteLine("In-parameters: ");
                foreach(PropertyData i in 

                Console.WriteLine("Out-parameters: ");
                foreach(PropertyData o in 

                Console.WriteLine("Qualifiers: ");
                foreach(QualifierData q in 


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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