Execute PowerShell script without waiting for result

Question

I try to execute a PowerShell script from c# without waiting for the result.

 string cmdArg = "MyScript.ps1";
 //Create New Runspace
 Runspace runspace = RunspaceFactory.CreateRunspace();
 runspace.ApartmentState = System.Threading.ApartmentState.STA;
 runspace.ThreadOptions = PSThreadOptions.UseCurrentThread;
 runspace.Open();

 //Adds the command
 pipeline.Commands.AddScript(cmdArg);
 pipeline.Commands[0].MergeMyResults(PipelineResultTypes.Error, PipelineResultTypes.Output);

 //Do not wait for a result
 pipeline.InvokeAsync();
 runspace.Close();

But it waits until the script has finished!

Angshuman Agarwal · Accepted Answer · 2012-07-04 20:54:47Z

1

Use BeginInvoke - as highlighted in this msdn sample - http://msdn.microsoft.com/en-us/library/windows/desktop/ee706580(v=vs.85).aspx. The script is run asynchronously and events are used to handle the output.

// Invoke the pipeline asynchronously.
IAsyncResult asyncResult = powershell.BeginInvoke<PSObject, PSObject>(null, output);

answered Jul 4, 2012 at 20:54

Angshuman Agarwal

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Mesh · Accepted Answer · 2012-07-04 11:10:07Z

1

Does this help?

http://msdn.microsoft.com/en-us/library/windows/desktop/ms569311(v=vs.85).aspx

The Remarks state that you should use RunSpace.OpenAsync() method for asynch....

edited Jul 4, 2012 at 11:10

answered Jul 4, 2012 at 11:00

Mesh

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