Question

I need to execute a PowerShell script from within C#. The script needs commandline arguments.

This is what I have done so far:

RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();  Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration); runspace.Open();  RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace);  Pipeline pipeline = runspace.CreatePipeline(); pipeline.Commands.Add(scriptFile);  // Execute PowerShell script results = pipeline.Invoke(); 

scriptFile contains something like ‘C:\Program Files\MyProgram\Whatever.ps1’.

The script uses a commandline argument such as ‘-key Value’ whereas Value can be something like a path that also might contain spaces.

I don’t get this to work. Does anyone know how to pass commandline arguments to a PowerShell script from within C# and make sure that spaces are no problem?

Answer 1

Try creating scriptfile as a separate command:

Command myCommand = new Command(scriptfile); 

then you can add parameters with

CommandParameter testParam = new CommandParameter("key","value"); myCommand.Parameters.Add(testParam); 

and finally

pipeline.Commands.Add(myCommand); 

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Here is the complete, edited code:

RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();  Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration); runspace.Open();  Pipeline pipeline = runspace.CreatePipeline();  //Here's how you add a new script with arguments Command myCommand = new Command(scriptfile); CommandParameter testParam = new CommandParameter("key","value"); myCommand.Parameters.Add(testParam);  pipeline.Commands.Add(myCommand);  // Execute PowerShell script results = pipeline.Invoke();