powershellformsnps

How to create an NPS (Net Promoter Score) logic in windows forms?

I need to create a windows forms GUI via Powershell which shows an NPS-scale from 0-10 and the user should be able to select only 1 of these values (or change it to another value) like radio buttons, but with text inside of each button. Below is the code I have so far, but I am struggling to work with the evnt, when one button is pressed. I need to set the CheckState of all other buttons back to "unpressed" and I also need to report the value of the last selected button, when someone presses the OK-button. This is what I have so far:

Add-Type -AssemblyName PresentationFramework
Add-Type -AssemblyName System.Windows.Forms 
Add-Type -AssemblyName System.Drawing

$form = [System.Windows.Forms.Form]::new()
$form.Text = 'NPS-Test'
$form.MaximizeBox = $false
$form.MinimizeBox = $false
$form.Size = @{Width=410;Height=140}
$form.StartPosition = 'CenterScreen'
$form.FormBorderStyle = 'Fixed3D'

function add-FormControl($parent, $type, $x, $y, $width, $height, $text, $font) {
    $c = new-object System.Windows.Forms.$type
    $c.Location = @{x=$x; y=$y}
    $c.Size = @{Width=$width;Height=$height}
    $c.Text = $text
    $c.Font = $font
    $parent.Controls.Add($c)
    return $c
}

$nps = [object[]]::new(11)
foreach($i in 0..10) {
    $nps[$i] = add-FormControl $form 'Checkbox' (10+35*$i) 20 30 30 $i
    $nps[$i].TextAlign = 'MiddleCenter'
    $nps[$i].Appearance = 'button'
    $nps[$i].Add_Click({$finalResult = $i})
    if ($i -gt 8) {$nps[$i].BackColor = 'PaleGreen'; continue}
    if ($i -gt 6) {$nps[$i].BackColor = 'Yellow'; continue}
    $nps[$i].BackColor = 'OrangeRed'

}

$ok = add-FormControl $form 'Button' 170 70 60 20 'OK'
$ok.DialogResult = 'OK'

$form.TopMost = $true
$form.BringToFront()
$form.Activate()
$result = $form.ShowDialog()

which creates a form like this:

NPS-Sample

Can someone please support on the event-part? Is there a "this"-logic inside a click-event or similar to work with focus to that clicked object?

Solution

  • Based on the good input from @Doofus here the final code:

    Add-Type -AssemblyName PresentationFramework
Add-Type -AssemblyName System.Windows.Forms 
Add-Type -AssemblyName System.Drawing

$form = [System.Windows.Forms.Form]::new()
$form.Text = 'NPS-Test'
$form.MaximizeBox = $false
$form.MinimizeBox = $false
$form.Size = @{Width=410;Height=140}
$form.StartPosition = 'CenterScreen'
$form.FormBorderStyle = 'Fixed3D'

function add-FormControl($parent, $type, $x, $y, $width, $height, $text, $font) {
    $c = new-object System.Windows.Forms.$type
    $c.Location = @{x=$x; y=$y}
    $c.Size = @{Width=$width;Height=$height}
    $c.Text = $text
    $c.Font = $font
    $parent.Controls.Add($c)
    return $c
}

function set-nps($list, $nps) {
    if ($script:npsScore -ne $null) {
        $list[$script:npsScore].Checked = $false
    }
    $script:npsScore = $nps
}

$ok = add-FormControl $form 'Button' 170 70 60 20 'OK'
$ok.DialogResult = 'OK'

$nps = [object[]]::new(11)
foreach($i in 0..10) {
    $nps[$i] = add-FormControl $form 'Checkbox' (10+35*$i) 20 30 30 $i
    $nps[$i].TextAlign = 'MiddleCenter'
    $nps[$i].Appearance = 'button'
    $nps[$i].Add_Click({set-nps -list $nps -nps $this.text})
    if ($i -gt 8) {$nps[$i].BackColor = 'PaleGreen'; continue}
    if ($i -gt 6) {$nps[$i].BackColor = 'Yellow'; continue}
    $nps[$i].BackColor = 'OrangeRed'

}

$form.TopMost = $true
$form.BringToFront()
$form.Activate()
$result = $form.ShowDialog()

cls
write-host "The selected NPS is $npsScore out of 10."