OK, great job! You've figured out how to extend classes . Now, how do you programmatically access them? I wrote up this quick example to show you how you can extend the Microsoft.Windows.Computer class with a couple of properties and then create an object of that class and populate the values of those properties.
Here we go! First a simple management pack to extend the Microsoft.Windows.Computer class:
<ManagementPack ContentReadable="true" SchemaVersion="1.1"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<Manifest>
<Identity>
<ID>TestMP</ID>
<Version>1.0.0.0</Version>
</Identity>
<Name>Configuration Items Extension</Name>
<References>
<Reference Alias="WinLib">
<ID>Microsoft.Windows.Library</ID>
<Version>1.0.3113.0</Version>
<PublicKeyToken>31bf3856ad364e35</PublicKeyToken>
</Reference>
</References>
</Manifest>
<TypeDefinitions>
<EntityTypes>
<ClassTypes>
<ClassType ID="TestMP.ExtensionClass" Accessibility="Public" Base="WinLib!Microsoft.Windows.Computer" Extension="true">
<Property ID="MySerialNumber" Type="string" />
<Property ID="MyAssetTag" Type="string" />
</ClassType>
</ClassTypes>
</EntityTypes>
</TypeDefinitions>
<LanguagePacks>
<LanguagePack ID="ENU" IsDefault="true">
<DisplayStrings>
<DisplayString ElementID="TestMP.ExtensionClass" SubElementID="MySerialNumber">
<Name>MySerialNumber</Name>
</DisplayString>
<DisplayString ElementID="TestMP.ExtensionClass" SubElementID="MyAssetTag">
<Name>MyAssetTag</Name>
</DisplayString>
</DisplayStrings>
</LanguagePack>
</LanguagePacks>
</ManagementPack>
Next – here is a simple console application that creates a new object of that class:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.EnterpriseManagement;
using Microsoft.EnterpriseManagement.Common;
using Microsoft.EnterpriseManagement.Configuration;
namespace CreateServer
{
class Program
{
static void Main(string[] args)
{
EnterpriseManagementGroup emg = new EnterpriseManagementGroup("localhost");
ManagementPackClass clsWindowsComputer = emg.EntityTypes.GetClass(new Guid("EA99500D-8D52-FC52-B5A5-10DCD1E9D2BD")); //This GUID represents the Microsoft.Windows.Windows.Computer class
ManagementPackClass clsWindowsComputerExtension = emg.EntityTypes.GetClass(new Guid("35097F79-9E81-AB9C-8553-81D71243D9DA")); //This GUID represents the TestMP.ExtensionClass class
EnterpriseManagementObjectProjection emopServer = new EnterpriseManagementObjectProjection(emg, clsWindowsComputer);
emopServer.Object[clsWindowsComputer, "PrincipalName"].Value = "mycomputer.mycompany.com"; //This is the key property and must be set
emopServer.Object[clsWindowsComputerExtension, "MySerialNumber"].Value = "123";
emopServer.Object[clsWindowsComputerExtension, "MyAssetTag"].Value = "456";
emopServer.Commit();
}
}
}
That's it! Import your MP, run your command line application and now you’ll have a computer in the UI that looks like this:
The key here is to use your extended class ID when getting/setting the extended class properties.
Source files are available here: http://cid-17faa48294add53f.skydrive.live.com/self.aspx/.Public/CreateServer.zip