Variable Scope in a Form

[bcafarofmr]

I'm trying to populate an array and load a listbox with the values of the array. The problem I'm having is when I call my function to load the array, as soon as I step out of the function, my array is empty.

If I run the code as a regular .ps1 script, it works fine (sending the values of the array to the console instead of a listbox). But if I put that same code into a form (.pff), it doesn't work.

I've tried setting the array scope to script: and global: levels, but that doesn't work no matter where I insert it. I've also tried creating a return value within the function, but that doesn't work either.

I'm still new to coding, but I understand the concept of scope. I guess I just don't understand scoping within Powershell Studio Forms.

Here is some sample code...

function OnApplicationLoad {
$script:arrLocalUsers = @()
$return $true
}

function OnApplicationExit {
$script:ExitCode = 0
}

function LOAD-MY-ARRAY {
$userList = ('Joe','Sam','Benny')
foreach ($user in $userList) {
$arrLocalUsers += $user
}
#Write-Host $arrLocalUsers
return $arrLocalUsers
}

LOAD-MY-ARRAY

foreach ($localUser in $arrLocalUsers) {
Load-ListBox $listbox1 $localUser -append
}

Any assistance would be greatly appreciated. Thanks in advance...

[jvierra]

How to load an array into a listbox:

PowerShell Code

Double-click the code block to select all.

$FormEvent_Load={
	#TODO: Initialize Form Controls here
    $a=@('tom','dick','harry')
	$listbox1.Items.AddRange($a)
}

[jvierra]

Calling a function to load an array:

PowerShell Code

Double-click the code block to select all.

function LOAD-MY-ARRAY {
	$userList = @('Joe','Sam','Benny')
	return $userList
}


$FormEvent_Load={
    $a=LOAD-MY-ARRAY
	$listbox1.Items.AddRange($a)
}

[bcafarofmr]

That worked perfectly. Thanks!!