Adding Multiple Task Sequence Variables to Devices using C#

Question

Hello,
I am hoping someone can help me with a small program I am writing for our company.  We are writing a small program in C# to import computers to a particular imaging collection and we need 2 variables set.  We have been able to create a single variable
using this guide: http://msdn.microsoft.com/en-us/library/jj218235.aspx
The problem is that when we write the 2nd variable, the first one is overwritten.  It looks like that property is an array.  I've been trying to find a way, either using the SCCM 2012 R2 SDK or just adding it via the standard System.Management
functionality.
I'm sure there is a way to do it, the Powershell CMDLets will add variables rather than overwrite.  We are trying to avoid that due to some PowerShell restrictions.
Any help would be much appreciate, I'm sure the answer is not as difficult as I'm making it but I'm stuck as I am not really a programmer, but, like many of us, have to function as one at times.
Thanks!

Answer 1

Certainly, here you are (I've removed some company-specific info and replaced it with generic info). I'll note - this code does work to add a variable to a device in SCCM. When adding multiple variables though, the first one is replaced. This code only seems
to work for adding 1 variable which is what is causing me the headache.
privatevoidAddVariable()
SmsNamedValuesDictionarynamedValues
=newSmsNamedValuesDictionary();
WqlConnectionManagerconnection
=newWqlConnectionManager(namedValues);
connection.Connect("SCCMSITESERVER");
try
// Get the computer settings.
// strResourceID is obtained via separate method “GETRESOURCEID()”
IResultObjectcomputerSettings
=null;
IResultObjectcomputerSettingsQuery
= connection.QueryProcessor.ExecuteQuery(
"Select * from SMS_MachineSettings where ResourceId = '"+strResourceID
+"'");
foreach(IResultObjectsettings
incomputerSettingsQuery)
computerSettings = settings;
if(computerSettings
== null) // It doesn't exist, so create it.
computerSettings = connection.CreateInstance(@"SMS_MachineSettings");
computerSettings["ResourceID"].StringValue
= strResourceID;
computerSettings["SourceSite"].StringValue
= "SITECODE";
      computerSettings["LocaleID"].IntegerValue
= 1033;
computerSettings.Put();
computerSettings.Get();
// Create the computer variable.
List<IResultObject>computerVariables
= computerSettings.GetArrayItems("MachineVariables");
IResultObjectcomputerVariable
=  connection.CreateEmbeddedObjectInstance("SMS_MachineVariable");
computerVariable["Name"].StringValue
= strVariableName;
computerVariable["Value"].StringValue
= strVariableValue;
computerVariable["IsMasked"].BooleanValue
= false;
// Add the computer variable to the computer settings.
        computerVariables.Add(computerVariable);
computerSettings.SetArrayItems("MachineVariables",
computerVariables);
computerSettings.Put();
catch(SmsExceptione)
MessageBox.Show("Failed
to create computer variable: "+ e.Message);
connection.Close();
Thank you for your help