Dynamic Variables and New-Object - in a GUI

Question

so, i have not found anything that i can parlay into a solution for what i am attempting to do.  
Basically i am using powershell to build a GUI to manage websites on various servers.  
in a nutshell:
- i have an array with the servers i want to query
- a foreach loop gets me the site names for each server (number of sites can vary on a server).
- need put checkboxes on a GUI for every site to do something (25-30 sites across 8 servers).
currently i am passing the $dir.name variable to a function that will create the new variable using this command:
$pName = $dir.name New-variable -name $pName -value (New-Object System.Windows.Forms.CheckBox)
$pName.Location -value (New-Object System.Drawing.Size(10,$i))
$pName.Size -value (New-Object System.Drawing.Size(100,20))
$Pname.Text -value $dir.name
$groupBox.Controls.Add($pName) 
Problem is i am not able to do anything with my newly created variable.  I am trying to use the following code to position the new checkbox but i get nothing (same for text, size, etc.)  I am not seeing any errors, so i don't know what i have going
wrong.  
is this even possible?
I am able to create static checkboxes, and i can create dynamic variables.  But i can't mix the two...

Answer 1

Here is how we normally use listboxes to handle form situations like this one.  The listboxes can automatically select subgroups.
The hash of arrays can be loaded very easily with a script or the results of the first list can be used to lookup and set the contents of the second.
Notice how little code is actually used.  This is all of the setup code needed aside from the from definition:
$FormEvent_Load={
$global:serversToSites=@{
Server1=@('S1_SITE1','S1_SITE2','S1_SITE3')
Server2=@('S2_SITE1','S2_SITE2','S2_SITE3')
Server3=@('S3_SITE1','S3_SITE2','S3_SITE3')
$listbox1.Items.AddRange($serversToSites.Keys)
$listbox1_SelectedIndexChanged={
$listbox2.Items.Clear()
$listbox2.Items.AddRange($global:serversToSites[$listbox1.SelectedItem])
$listbox2_SelectedIndexChanged={
[void][System.Windows.Forms.MessageBox]::Show($listbox2.SelectedItem,'You Selected Site')
Here is the complete demo form:
[void][reflection.assembly]::Load("System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")
[void][reflection.assembly]::Load("System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")
[System.Windows.Forms.Application]::EnableVisualStyles()
$form1 = New-Object 'System.Windows.Forms.Form'
$listbox2 = New-Object 'System.Windows.Forms.ListBox'
$listbox1 = New-Object 'System.Windows.Forms.ListBox'
$buttonOK = New-Object 'System.Windows.Forms.Button'
$InitialFormWindowState = New-Object 'System.Windows.Forms.FormWindowState'
$FormEvent_Load={
$global:serversToSites=@{
Server1=@('S1_SITE1','S1_SITE2','S1_SITE3')
Server2=@('S2_SITE1','S2_SITE2','S2_SITE3')
Server3=@('S3_SITE1','S3_SITE2','S3_SITE3')
$listbox1.Items.AddRange($serversToSites.Keys)
$listbox1_SelectedIndexChanged={
$listbox2.Items.Clear()
$listbox2.Items.AddRange($global:serversToSites[$listbox1.SelectedItem])
$listbox2_SelectedIndexChanged={
[void][System.Windows.Forms.MessageBox]::Show($listbox2.SelectedItem,'You Selected Site')
$Form_StateCorrection_Load=
#Correct the initial state of the form to prevent the .Net maximized form issue
$form1.WindowState = $InitialFormWindowState
$form1.Controls.Add($listbox2)
$form1.Controls.Add($listbox1)
$form1.Controls.Add($buttonOK)
$form1.AcceptButton = $buttonOK
$form1.ClientSize = '439, 262'
$form1.FormBorderStyle = 'FixedDialog'
$form1.MaximizeBox = $False
$form1.MinimizeBox = $False
$form1.Name = "form1"
$form1.StartPosition = 'CenterScreen'
$form1.Text = "Form"
$form1.add_Load($FormEvent_Load)
# listbox2
$listbox2.FormattingEnabled = $True
$listbox2.Location = '237, 26'
$listbox2.Name = "listbox2"
$listbox2.Size = '120, 134'
$listbox2.TabIndex = 2
$listbox2.add_SelectedIndexChanged($listbox2_SelectedIndexChanged)
# listbox1
$listbox1.FormattingEnabled = $True
$listbox1.Location = '13, 26'
$listbox1.Name = "listbox1"
$listbox1.Size = '120, 134'
$listbox1.TabIndex = 1
$listbox1.Sorted = $true
$listbox1.add_SelectedIndexChanged($listbox1_SelectedIndexChanged)
# buttonOK
$buttonOK.Anchor = 'Bottom, Right'
$buttonOK.DialogResult = 'OK'
$buttonOK.Location = '352, 227'
$buttonOK.Name = "buttonOK"
$buttonOK.Size = '75, 23'
$buttonOK.TabIndex = 0
$buttonOK.Text = "OK"
$buttonOK.UseVisualStyleBackColor = $True
#Save the initial state of the form
$InitialFormWindowState = $form1.WindowState
#Init the OnLoad event to correct the initial state of the form
$form1.add_Load($Form_StateCorrection_Load)
#Clean up the control events
$form1.add_FormClosed($Form_Cleanup_FormClosed)
#Show the Form
$form1.ShowDialog()
You can easily substitute  CheckedListbox if you like checkboxes.
¯\_(ツ)_/¯