Selected ListBox Not Passing

PowerShell Help
1

Here is the beginning of the code and what I am trying to do is when someone selects something on the ListBox it would then pass that value to a variable where I could use later on in the code. Nothing is passing though. I have just for testing
$info.Text = $x which should be the SelectedItem in $UserList

Function MakeNewForm {
	$GUI.Close()
	$GUI.Dispose()
	MakeForm
}
### Remove user for all AD Groups
Function RemoveMemberships

 {

 param([string]$disableUser)  
 
 $disuser = Get-ADUser $($disableUser) -properties memberof
 
 $userGroups = $disuser.memberof

 $userGroups | %{get-adgroup $_ | Remove-ADGroupMember -confirm:$false -member $($disableUser)}

 $userGroups = $null

 }
###################### END OF FUNCTIONS #########################

Function MakeForm{
Add-Type -AssemblyName System.Windows.Forms
$GUI = New-Object system.Windows.Forms.Form
$GUI.Text = "Disable User Account"
$GUI.BackColor = "#ffffff"
$GUI.TopMost = $true
$GUI.BackgroundImage = [system.drawing.image]::FromFile("yay.png")
$GUI.Width = 510
$GUI.Height = 203
$GUI.StartPosition = "manual"
$GUI.FormBorderStyle = 3
$GUI.Location = New-Object System.Drawing.Size(600, 300)



$disUser = New-Object system.windows.Forms.TextBox
$disUser.Width = 100
$disUser.Height = 20
$disUser.location = new-object system.drawing.point(23,20)
$disUser.Font = "Microsoft Sans Serif,10"
$GUI.controls.Add($disUser)

$User = New-Object system.windows.Forms.Label
$User.Text = "Disable Username"
$User.AutoSize = $true
$User.Width = 25
$User.Height = 10
$User.location = new-object system.drawing.point(23,3)
$User.Font = "Arial,10"
$GUI.controls.Add($User)

$search = New-Object system.windows.Forms.Button
$search.BackColor = "#cccccc"
$search.Text = "Search"
$search.ForeColor = "#0b6ea8"
$search.Width = 62
$search.Height = 20
$search.Add_Click({

$UserList = New-Object system.windows.Forms.ListBox
$UserList.Width = 134
$UserList.Height = 125

$disableUser = $disUser.Text
$names = Get-ADUser -Filter {name -like $disableUser} | Select -ExpandProperty name
foreach ($name in $names) {
$UserList.items.add($name) | Out-Null
}
if ($UserList.SelectedIndex -gt -1)
{
$global:x = $UserList.SelectedItem
}
$UserList.location = new-object system.drawing.point(212,20)
$GUI.controls.Add($UserList)
})

$search.location = new-object system.drawing.point(140,20)
$search.Font = "Microsoft Sans Serif,10"
$GUI.controls.Add($search)

$label6 = New-Object system.windows.Forms.Label
$label6.Text = "Assign Full Access to Mailbox"
$label6.AutoSize = $true
$label6.Width = 25
$label6.Height = 10
$label6.location = new-object system.drawing.point(23,45)
$label6.Font = "Microsoft Sans Serif,10"
$GUI.controls.Add($label6)

$faUser = New-Object system.windows.Forms.TextBox
$faUser.Width = 100
$faUser.Height = 20
$faUser.location = new-object system.drawing.point(23,65)
$faUser.Font = "Microsoft Sans Serif,10"
$GUI.controls.Add($faUser)

$ticketin = New-Object system.windows.Forms.TextBox
$ticketin.Width = 100
$ticketin.Height = 20
$ticketin.location = new-object system.drawing.point(23,108)
$ticketin.Font = "Microsoft Sans Serif,10"
$GUI.controls.Add($ticketin)

$ticket = New-Object system.windows.Forms.Label
$ticket.Text = "Ticket Number"
$ticket.AutoSize = $true
$ticket.Width = 25
$ticket.Height = 10
$ticket.location = new-object system.drawing.point(23,89)
$ticket.Font = "Microsoft Sans Serif,10"
$GUI.controls.Add($ticket)

$reset = New-Object system.windows.Forms.Button
$reset.BackColor = "#cccccc"
$reset.Text = "Reset"
$reset.ForeColor = "#0b6ea8"
$reset.Width = 62
$reset.Height = 20
$reset.Add_Click({MakeNewForm})
$reset.location = new-object system.drawing.point(105,140)
$reset.Font = "Microsoft Sans Serif,10"
$GUI.controls.Add($reset)

$execute = New-Object system.windows.Forms.Button
$execute.BackColor = "#cccccc"
$execute.Text = "Disable"
$execute.ForeColor = "#ff0000"
$execute.Width = 62
$execute.Height = 20
$execute.Add_MouseClick({
#Code to Execute

Import-Module ActiveDirectory
$Today=Get-date -Format "MMM/d/yyyy"
$LoggedInUser=$env:USERNAME

####if ($UserList.SelectedItem -eq $null)
####{
####$disableUser = $disUser.Text
####}
####else
###{
####$disableUser = $UserList.SelectedItem
####}

$info = New-Object system.windows.Forms.Label
$info.Text = $x
$info.ForeColor = "#FF0000"
$info.AutoSize = $true
$info.Width = 25
$info.Height = 10
$info.location = new-object system.drawing.point(180,140)
$info.Font = "Microsoft Sans Serif,10,style=Bold"
$GUI.controls.Add($info)
})

$execute.location = new-object system.drawing.point(24,140)
$execute.Font = "Microsoft Sans Serif,10,style=Bold"
$GUI.controls.Add($execute)

[void]$GUI.ShowDialog()
$GUI.Dispose()
}

MakeForm