使用来自 C# 的 PowerShell 主机，我如何才能获得 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.

Answer 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);
    }
}