捕获从.NET应用程序执行的powershell脚本的标准输出

Question

Let's assume that I have very simple powershell script myscript.ps1 , which writes to standart output:

get-location

Now I want to execute this script from .net application. I ended up with next code:

var process = new Process
        {
            StartInfo = {
                FileName = "powershell.exe",
                Arguments = "-file \"myscript.ps1\"",
                WorkingDirectory = Path.Combine(Environment.CurrentDirectory, "run"),
                UseShellExecute = false,
                RedirectStandardOutput = true
            }
        };

process.OutputDataReceived += (sender, args) => Console.WriteLine(args.Data);
process.Start();
process.BeginOutputReadLine();
process.WaitForExit();

And it works, but I think it should be more elegant way to do it using System.Management.Automation assembly:

using (PowerShell shell = PowerShell.Create())
{
    shell.Commands.AddScript("myscript.ps1");
    var r = shell.Invoke();
    Console.WriteLine(r);
}

But Invoke returns collection of `PSObject, and I can't find way to get access to stdout

Answer 1

在“myscript.ps1”上放置Out-String