Filter an array from an array

Question

I am trying to build a GUI that will eventually allow our second line team to easily apply look up AD accounts. I have got so far but I cannot get PowerShell to look up the value entered into a text box to then evaluate if the user exists in AD.

Here is the script:

Add-Type -AssemblyName System.Windows.Forms
[System.Windows.Forms.Application]::EnableVisualStyles() 

$Form               = New-Object System.Windows.Forms.Form
$Form.ClientSize    = '400,400'
$Form.Text          = "Add DXE Mailbox Permissions"
$Form.TopMost       = $false

$Label1             = New-Object System.Windows.Forms.Label
$Label1.Text        = "Username"
$Label1.AutoSize    = $true
$Label1.Width       = 25
$Label1.Height      = 10
$Label1.Location    = New-Object System.Drawing.Point(15, 145)
$Label1.Font        = 'Microsoft Sans Serif,10'

$TextBox1           = New-Object System.Windows.Forms.TextBox
$TextBox1.Multiline = $false
$TextBox1.Width     = 168
$TextBox1.Height    = 20
$TextBox1.Location  = New-Object System.Drawing.Point(15, 165)
$TextBox1.Font      = 'Microsoft Sans Serif,10'

$Button1            = New-Object System.Windows.Forms.Button
$Button1.Text       = "Check Username"
$Button1.Width      = 120
$Button1.Height     = 30
$Button1.Location   = New-Object System.Drawing.Point(199, 162)
$Button1.Font       = 'Microsoft Sans Serif,10'
$Button1.Add_Click($Button1_Click)

$Form.Controls.AddRange(@($Label1, $TextBox1, $Button1))

$Button1_Click = {
    $username = $Label1.Text
    $Checkuser = Get-ADUser -Identity $username
    if ($Checkuser -eq $null) {
        $Button1.Text = "Can't Find User"
        $button1.ForeColor = "Red"
    } elseif ($Checkuser -ne $null) {
        $Button1.Text = "Found User"
    }
}

[void]$Form.ShowDialog()

I believe the problem I am having is to do with the line $username = $Label1.Text. I am not sure if $Label1.Text should be assigned to a varible, and if so how would I make PowerShell retrive the text that has been entered? I had a quick look around and I am hoping that there is a way to do this without opening and closing another window.

Janne Tuukkanen · Accepted Answer · 2018-12-14 15:04:17Z

1

You are referring to a wrong object here:

$username = $Label1.text

That's, em, the label. Of course you should get the value from the TextBox:

$username = $TextBox1.text

answered Dec 14, 2018 at 15:04

Janne Tuukkanen

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1 Comment

Cjones108 Over a year ago

ah, I see my mistake now. Thank you for your help.

Mathias R. Jessen · Accepted Answer · 2018-12-14 15:04:36Z

1

You need to assign the $Button1_Click action after you've defined it - otherwise you're just assigning $null to the Click event:

<# define controls here ... #>
$Form.controls.AddRange(@($Label1,$TextBox1,$Button1))

$Button1_Click = {
  $username = $Label1.text
  $Checkuser = Get-ADUser -Identity $username
  If($Checkuser -eq $null){
    $Button1.Text = "Can't Find User"
    $button1.ForeColor = "Red"
  }
  Elseif($Checkuser -ne $null){
    $Button1.Text = "Found User"
  }
}

$Button1.Add_click($Button1_Click)

[void]$Form.ShowDialog()

If you want to grab the username from the text box, change $username = $Label1.text to $username = $TextBox1.Text

answered Dec 14, 2018 at 15:04

Mathias R. Jessen

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