I'm creating a PowerShell cmdlets from Visual Studio and I can't find out how to call cmdlets from within my C# file, or if this is even possible? I have no trouble running my cmdlets one by one, but I want to set up a cmdlet to run multiple cmdlets in a sequel.
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1See also Invoking powershell cmdlets from C#.Franklin Yu– Franklin Yu2018-11-20 20:58:02 +00:00Commented Nov 20, 2018 at 20:58
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2 Answers
Yes, you can call cmdlets from your C# code.
You'll need these two namespaces:
using System.Management.Automation;
using System.Management.Automation.Runspaces;
Open a runspace:
Runspace runSpace = RunspaceFactory.CreateRunspace();
runSpace.Open();
Create a pipeline:
Pipeline pipeline = runSpace.CreatePipeline();
Create a command:
Command cmd= new Command("APowerShellCommand");
You can add parameters:
cmd.Parameters.Add("Property", "value");
Add it to the pipeline:
pipeline.Commands.Add(cmd);
Run the command(s):
Collection output = pipeline.Invoke();
foreach (PSObject psObject in output)
{
....do stuff with psObject (output to console, etc)
}
Does this answer your question?
5 Comments
simon at rcl
Shouldn't pipeline.Commands.Add(getProcess); be pipeline.Commands.Add(cmd); - otherwise what looks like a pretty good answer.
simon at rcl
Taught me something, anyway! Cheers -
Peter Wone
Despite its age this is still a very helpful answer. For those using dotnet core and the CLI, begin with
dotnet add package system.management.automation to get those namespaces.Peter Wone
Sorry that's not the core package, for Core you need
microsoft.powershell.sdk
Ehsan Keshavarzian
This is to run existing PowerShell cmdlets. Is there a way to run a custom cmdlet (implemented in C#) using automation API?
You can use CliWrap Package as an alternative to call PowerShell cmdlets from C# besides using Microsoft.PowerShell.SDK and System.Management.Automation.
The benefit of CliWrap Package is you can interact with all external cli not only PowerShell but also Git, NPM, Docker, etc.
For example, you can try this C# code. It will retrieve all Visual Studio processes to the console as if you execute it through command line:
using CliWrap;
using CliWrap.Buffered;
namespace ConsoleApp2
{
public class Program
{
public static async Task Main(string[] args)
{
var dbDailyTasks = await Cli.Wrap("powershell")
.WithArguments(new string[] { "Get-Process", "-Name", "\"devenv\"" })
.ExecuteBufferedAsync();
Console.WriteLine(dbDailyTasks.StandardOutput);
Console.WriteLine(dbDailyTasks.StandardError);
Console.ReadLine();
}
}
}
