Mastering Windows PowerShell Scripting - Third Edition

The EndInvoke method and the PSDataCollection object

EndInvoke is one of two possible ways to get output from a PowerShell instance. The EndInvoke method may be called as follows:

$psInstance = [PowerShell]::Create()$asyncResult = $psInstance.AddScript('1..10').BeginInvoke()$psInstance.EndInvoke($asyncResult)

If the invocation has not finished, EndInvoke will block execution until it has completed.

The second possible method involves passing a PSDataCollection object to the BeginInvoke method:

$instanceInput = [System.Management.Automation.PSDataCollection[PSObject]]::new()$instanceOutput = [System.Management.Automation.PSDataCollection[PSObject]]::new()$psInstance = [PowerShell]::Create()$asyncResult = $psInstance.AddScript(' 1..10 | ForEach-Object ...