exit from powershell script causes Unhandled exception - powershell

Question

I am trying to execute exit after closing the form when clicking "NO" button, but exit causes a system error
Code:
function No {
$Form.close()
exit
}
$NoButton.Add_Click({No})
Without exit, it closes the form but it continues executing the script
System error:
Unhandled exception has occured in a component in your application. If you click Continue, the application will ignore this error and
attempt to continue.
System error.
Full button code:
function No {
$Form.close()
exit
} #end No
# No button
$NoButton = New-Object System.Windows.Forms.Button
$NoButton.Location = New-Object System.Drawing.Size(95,80)
$NoButton.Size = New-Object System.Drawing.Size(80,20)
$NoButton.Text = "No"
$NoButton.Add_Click({No})
$NoButton.Cursor = [System.Windows.Forms.Cursors]::Hand
$Form.Controls.Add($NoButton)

Answer 1

You need to wait till the $Form is actually closed and then better kill it's own process:
$NoButton = New-Object System.Windows.Forms.Button
$NoButton.Location = New-Object System.Drawing.Size(95,80)
$NoButton.Size = New-Object System.Drawing.Size(80,20)
$NoButton.Text = "No"
$NoButton.Add_Click({$Form.close()})
$NoButton.Cursor = [System.Windows.Forms.Cursors]::Hand
$Form.Controls.Add($NoButton)
$Form.Add_Closed({Stop-Process -ID $PID}) # Kill it's own process when the form is closed