是否可以在PowerShell中同时运行2个功能？

Question

In a PowerShell script I have

function f1{ do something}
function f2{ do something else}
button1
button2
richtextbox

When I press button1 it runs f1 and it outputs data in the richtextbox . When I press button2 I need the script to run f2 even if f1 hasn't finished. The data from f2 I don't need it to be outputted in the same richtextbox , it can be a different one. My question is: can 2 different functions run at the same time in PowerShell?

Update: For my PowerShell script I've done a GUI that has a bunch of button that do different things. When I press one button it starts to connect to a serial device and outputs data to the richtextbox and at some points it saves data into a text file. 2 other buttons have the following functions: it takes parts of data from the text file saved, opens a temporary php web server, opens a link to create a pdf file, and the it send the file to the correct printer/tray for printing. These 2 buttons I've just noticed that they work. My problem is with the buttons that are in a popup form. One other button from my main form opens a popup form and populates it with data from the text file saved above.

$print_equip_button.Add_Click({
    print "link.php?data=$data" $file_location $type
}.GetNewClosure())

In the main form the code above works, from popup it doesn't. Also tried with no luck.

$print_equip_button.Add_Click({
    Start-Job -ScriptBlock {print "link.php?data=$data" $file_location $type}
}.GetNewClosure())

I've added at the beginning of a function

for($i=1;$i -le 100;$i++){
    [System.Windows.Forms.Application]::DoEvents()
    start-sleep -s 1
    $LogTextBox.Text = "$temp`n" + "Count $i"
}

to see if what happens to function f1 when I press a button in the popup and from what I can see, when I open the popup form, the counting stops and continues when I close it.

UPDATE: I found that if I have the script opened in PowerShell ISE and run it from there, everything works as I wanted without the need of "Start-Job". When running the .ps file on its own it doesn't work, not even with "Start-Job"

Answer 1

Both jobs and runspaces will do this for you, remember though you have to specifically get the information back from the function, just running it in a different thread won't give you a return, as the output will be in a separate thread.

Jobs are better for a single function that takes a long time eg deploying an ovf and runspaces are better for more broad functions eg pinging 1000 machines in parallel.

You can use receive-job to get results back from start-job.

Answer 2

you can do this by asynchronous ui updation using runspaces:

  $button1_Click={

$ps = [powershell]::create()
$ps.AddScript(
     {
     #replace with your function definition
       while($true){
        $richtextbox1.appendtext("1")
        start-sleep 1
        }
    }
)

$ps.Runspace.SessionStateProxy.SetVariable("richtextbox1", $richtextbox1)
$ps.BeginInvoke()
}


$button2_Click={
$ps2 = [powershell]::create()
$ps2.AddScript(
     {
      #replace with your function definition
       while($true){
        $richtextbox2.appendtext("1")
        start-sleep 1
        }
    }
)


$ps2.Runspace.SessionStateProxy.SetVariable("richtextbox2", $richtextbox2)
$ps2.BeginInvoke()


    }