Assign variables to powershell using C#

Question

I'am tring to call a powershell script and pass through a parameter. I would all so like to pass through a more than one parameter eventually

        RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();
        Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration);
        runspace.Open();
        RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace);

        Pipeline pipeline = runspace.CreatePipeline();

        String scriptfile = "..\\..\\Resources\\new group.ps1";

        Command myCommand = new Command(scriptfile, false);

        CommandParameter testParam = new CommandParameter("test3");

        myCommand.Parameters.Add(testParam);


        pipeline.Commands.Add(myCommand);
        Collection<PSObject> psObjects;
        psObjects = pipeline.Invoke();
        runspace.Close();

The problem seems to be ... well nothing happens. Is this how to correctly assign the varibles? Giving test powershell script

# creates group
net localgroup $username /Add
# makes folder
#mkdir $path

Not an answer to your question so much as a quick comment - have you tried interacting with the local ADSI store through .NET instead? stackoverflow.com/questions/1640022/… — Chris N
– Chris N, Commented Aug 7, 2012 at 16:13

Keith Hill · Accepted Answer · 2012-08-07 16:07:09Z

4

This line of code:

CommandParameter testParam = new CommandParameter("test3");

Creates a parameter named test3 that has a value of null. I suspect you want to create a named parameter e.g.:

CommandParameter testParam = new CommandParameter("username", "test3");

And you're script needs to be configured to accept parameters e.g.:

--- Contents of 'new group.ps1 ---
param([string]$Username)
...

answered Aug 7, 2012 at 16:07

Keith Hill

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Comments

Chris N · Accepted Answer · 2012-08-07 16:00:05Z

1

The PowerShell script needs to be setup to accept parameters:

Try adding the following to the top of that script and re-testing:

param([string]$username)

Alternatively, you could add the folowing line to the top of your script:

$username = $args[0]

Good luck.

answered Aug 7, 2012 at 16:00

Chris N

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3 Comments

Sam Stephenson Over a year ago

this helps but is assigning System.Management.Automation.Runspaces.CommandParameter as groupname

Chris N Over a year ago

If you open up PowerShell and execute the script with that parameter, what happens?

Chris N Over a year ago

Take a look at Keith's answer. Looks like an issue with your C# and how you're setting the parameter.

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