How to catch exit code from a powershell script in c#

Question

I have a powershell script which is run by c#. Below is my code:

string data = System.IO.File.ReadAllText(@"C:\Users\user1\Desktop\power.ps1");
using (PowerShell PowerShellInstance = PowerShell.Create())
{
    PowerShellInstance.AddScript(data);
    IAsyncResult result = PowerShellInstance.BeginInvoke();
    while (!result.IsCompleted)
    {
        Logger.Info("Wait initiated");
        Thread.Sleep(5000);
    }
}

How can I read the exit code after completing the script?

I don't see any exit code in your code. There is not even an "exit"... — The incredible Jan
– The incredible Jan, Commented Aug 31, 2023 at 9:36

user2316116 · Accepted Answer · 2020-04-28 21:39:48Z

1

From here Executing PowerShell scripts from C#

// begin invoke execution on the pipeline
// use this overload to specify an output stream buffer
IAsyncResult result = PowerShellInstance.BeginInvoke<PSObject, PSObject>(null, outputCollection);

...

foreach (PSObject outputItem in outputCollection)
{
    //TODO: handle/process the output items if required
    Console.WriteLine(outputItem.BaseObject.ToString());
}

answered Apr 28, 2020 at 21:39

user2316116

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3 Comments

Ijas Over a year ago

what is outputCollection?

user2316116 Over a year ago

PSDataCollection<PSObject> outputCollection = new PSDataCollection<PSObject>();

The incredible Jan Over a year ago

That doesn't really answer the question but maybe the question itself is wrong. The exit code is stored in $LASTEXITCODE but this doesn't seem to be too easy to use in C#: stackoverflow.com/a/780047/2523899

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