Passing arguments to powershell script executed from c# application is not working

Question

I have a bit of code in c# that calls a powershell script. This code for the most part is working fine. However I have made some changes in order to pass parameters into my script. This however is not working for some reason. Heres' some code.

System.Management.Automation.Runspaces.Runspace runspace = System.Management.Automation.Runspaces.RunspaceFactory.CreateRunspace();
            runspace.Open();

            using (System.Management.Automation.RunspaceInvoke runspaceInvoker = new System.Management.Automation.RunspaceInvoke(runspace))
            {
                runspaceInvoker.Invoke("Set-ExecutionPolicy RemoteSigned");

                using (System.Management.Automation.PowerShell powershell = System.Management.Automation.PowerShell.Create())
                {
                    string accessScriptPath = System.Configuration.ConfigurationManager.AppSettings["MtpAccessScriptPath"]; 
                    string mtpXmlScriptPath = System.Configuration.ConfigurationManager.AppSettings["MtpXmlDestinationPath"] + "\\MtpToPertrac.xml";
                    string powershellScriptPath = System.Configuration.ConfigurationManager.AppSettings["MtpPowershellScriptPath"];
                    powershell.Runspace = runspace;                    
                    powershell.Commands.AddScript(powershellScriptPath);                    
                    powershell.Commands.AddArgument(mtpXmlScriptPath);
                    powershell.Commands.AddArgument(accessScriptPath);

                    Collection<System.Management.Automation.PSObject> results = new Collection<System.Management.Automation.PSObject>();
                    Collection<System.Management.Automation.ErrorRecord> errors = new Collection<System.Management.Automation.ErrorRecord>();
                    try
                    {
                        results = powershell.Invoke();
                        errors = powershell.Streams.Error.ReadAll();
                    }
                    catch (Exception ex)
                    {
                        results.Add(new System.Management.Automation.PSObject((object)ex.Message));
                    }

                    runspace.Close();

param
(
    [string]$mtpXmlFilePath = "<default path>\file.xml",
    [string]$mtpAccessPath = "<default path>\accessFile.accdb"
)
    
if($env:Processor_Architecture -ne "x86")
{
    write-warning "Running x86 Powershell ...."
    &"$env:WINDIR\syswow64\windowspowershell\v1.0\powershell.exe" -NonInteractive -NoProfile $myInvocation.Line
    exit
}

Set-Psdebug -strict
# xml reader
[xml]$x = Get-Content $mtpXmlFilePath

$newData = $x.ArrayOfMtpToPertracModel.MtpToPertracModel | Select-Object K2ID, HedgeFundLegalEntityName, Mtd, Period, AsOfDate, Estimate

$dataSource = $mtpAccessPath
$dsn = "Provider=Microsoft.ACE.OLEDB.12.0; Data Source=$dataSource;"
$objConn = New-Object System.Data.OleDb.OleDbConnection $dsn
$objConn.Open()

Answer 1

Hi dharric72,

Welcome to the MSDN forum.

Based on my research, I think you can try the below threads which discussing the similar issue. If you have any further question please let me know.

How to call Powershell Script function from C# ?

http://social.msdn.microsoft.com/Forums/en-SG/csharpgeneral/thread/faa70c95-6191-4f64-bb5a-5b67b8453237

Passing parameters to ps1 file

http://social.msdn.microsoft.com/Forums/en/sharepoint2010general/thread/f80b62bf-1393-4885-a80c-8aa151df738e

Running powershell from C# Issue

http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/463001f1-51be-40a9-8b6b-70c0750f51fa

Have a nice day.

---

Bob Shen [MSFT]
MSDN Community Support | Feedback to us

Answer 2

Thanks but that does not help me. Basically I have to somehow pass my parameters to the WINDIR\syswow64\windowspowershell\v1.0\powershell.exe line. Anyone know how to do this?

Answer 3

How about this http://stackoverflow.com/questions/2594587/passing-parameters-to-powershell-from-c-sharp