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C# Runspace Powershell (Interactive)

I am trying with C# to execute a Powershell file with paramters in a runspace. Unfortunately i get the following output:

A command that prompts the user failed because the host program or the command type does not support user interaction. Try a host program that supports user interaction, such as the Windows PowerShell Console or Windows PowerShell ISE, and remove prompt-related commands from command types that do not support user interaction, such as Windows PowerShell workflows.

What could i do?

Current c# code. this needs to execute commands that will be in a PS file and needs to return a json string.

public string ExecuteCommandDirect(int psId, string psMaster, string psFile)
{
    String FullPsFilePath = @"C:\CloudPS\" + psFile + ".ps1";

    String PsParameters = FullPsFilePath + " -psId " + psId + " -psMaster " + psMaster + " -NonInteractive";

    // Create Powershell Runspace
    Runspace runspace = RunspaceFactory.CreateRunspace();

    runspace.Open();

    // Create pipeline and add commands
    Pipeline pipeline = runspace.CreatePipeline();
    pipeline.Commands.AddScript(PsParameters);

    // Execute Script
    Collection<PSObject> results = new Collection<PSObject>();
    try
    {
        results = pipeline.Invoke();
    }
    catch (Exception ex)
    {
        results.Add(new PSObject((object)ex.Message));
    }

    // Close runspace
    runspace.Close();

    //Script results to string
    StringBuilder stringBuilder = new StringBuilder();
    foreach (PSObject obj in results)
    {
        Debug.WriteLine(obj);
        stringBuilder.AppendLine(obj.ToString());
    }

    return stringBuilder.ToString();

}

PS Code:

param([int]$psId = 0, [string]$psMaster = 'localhost');

$date = Get-Date -Format 'h:m:s' | ConvertTo-Json;

Write-Host $date;

exit;
like image 885
user2702653 Avatar asked Sep 21 '14 20:09

user2702653


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1 Answers

Use Write-Output instead of Write-Host

like image 61
Mike Keysaer Avatar answered Nov 02 '22 02:11

Mike Keysaer