Using the PowerShell host from C# how can I get the output?

Question

Having the following NET 5 Console application:

static void Main(string[] args)
{
    using var ps = PowerShell.Create();
    // ps.AddCommand("Get-Service");
    ps.AddStatement().AddCommand("Get-Service");
    ps.Invoke();
}

The calls seems to be executed with no error, but where the output goes? I've tried both AddCommand and AddStatement, and also examined the ps variable in debugger, no signs of output. I did discover the ps.Streams.Information but it is empty.

var results = ps.Invoke();. See the documentation

Aluan Haddad
– Aluan Haddad

2021-02-28 08:18:49 +00:00
Commented Feb 28, 2021 at 8:18 — Aluan Haddad
– Aluan Haddad, Commented Feb 28, 2021 at 8:18
many thx, it's an answer

g.pickardou
– g.pickardou

2021-02-28 08:21:00 +00:00
Commented Feb 28, 2021 at 8:21 — g.pickardou
– g.pickardou, Commented Feb 28, 2021 at 8:21

Aluan Haddad · Accepted Answer · 2021-02-28 08:29:41Z

1

As detailed in the documentation for the PowerShell.Invoke method, it returns a collection containing any results that the PowerShell operation produced.

Thus, you can write

static void Main(string[] args)
{
    using var ps = PowerShell.Create();
    ps.AddStatement().AddCommand("Get-Service");
    var results = ps.Invoke();

    foreach (var result in results)
    {
        Console.WriteLine(result);
    }
}

answered Feb 28, 2021 at 8:29

Aluan Haddad

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