Powershell to C# - Get-WMIObject

Question

So here's the powershell:

$app = Get-WmiObject -Class SMS_UserApplicationRequest -Namespace root/SMS/site_sitename -
 ComputerName computername | Select-Object User, Application, RequestGUID

$app

It works fine, returns the info with no problem.

Running in c#:

Runspace runspace = RunspaceFactory.CreateRunspace();
runspace.Open();

PowerShell powerShell = PowerShell.Create();
powerShell.Runspace = runspace;
powerShell.AddScript(script);

Collection<PSObject> results = powerShell.Invoke();

foreach (PSObject result in results)
{
    MessageBox.Show(result.ToString());
}

runspace.Close();

This shows the baseObject, which is the UserApplicationRequest, but how do I access the data in the request? (That was the Select-Object User, Application, RequestGUID)

Keith Hill · Accepted Answer · 2013-08-17 20:42:20Z

1

If you are on PowerShell V3 (System.Management.Automation.dll 3.0), don't forget that it is now sitting on the DLR. That means that PSObject can be used via the dynamic keyword in C# e.g.:

foreach (dynamic result in results)
{
    var msg = String.Format{"User: {0}, Application: {1}, RequestGUID: {2}", 
                            result.User, result.Application, result.RequestGUID);
    MessageBox.Show(msg);
}

edited Aug 17, 2013 at 20:42

answered Aug 17, 2013 at 20:29

Keith Hill

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2 Comments

ctd25 Over a year ago

This worked, thank you! Still pretty new to powershell and c# in general, so I appreciate the help.

ctd25 Over a year ago

I'm running into a new issue on this - it works without a problem on the PC I wrote the code on, but any other PC, I get an exception thrown when I try to access one of the properties: runtimebinderexception PSObject does not contain a definition for "PropertyName" Any ideas what would cause this/why it would only work on the PC I wrote the code on?

Scott Saad · Accepted Answer · 2013-08-17 02:56:17Z

0

In order to get at the custom objects being created by the Select-Object cmdlet you can iterate over the Properties member:

foreach (var result in results)
{
    foreach ( var property in result.Properties )
    {
        MessageBox.Show( string.Format( "name: {0} | value: {1}", property.Name, property.Value ) );
    }
}

edited Aug 17, 2013 at 2:56

answered Aug 16, 2013 at 20:50

Scott Saad

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4 Comments

ctd25 Over a year ago

Tried - I get: can't operate of variables of type PSObject because PSObject does not contain a public definition for 'GetEnumerator'

Mitul Over a year ago

Shouldn't it be var property in result.Properties ?

Scott Saad Over a year ago

@Mitul - It should! Sorry about that typo and I'll fix it up. :)

Scott Saad Over a year ago

@ctd25 - Okay made a quick fix on a typo for the answer. Sorry about that. Think that should fix the problem you were seeing.

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