PowerShell call function on enter in a textbox

Question

I'm trying to validate a user input made in a textbox. But instead of always adding a button that he has to press i would like to check it automatically when the user hits the "Enter"-Key.

So my question is: Can PowerShell call a function as soon as the user hits the Enter in a specific textbox?

Answer 1

Simple example in Windows Forms:

Add-Type -AssemblyName System.Windows.Forms

$form = New-Object System.Windows.Forms.Form

$textbox = New-Object System.Windows.Forms.TextBox

$textbox.Add_KeyDown({
    if ($_.KeyCode -eq [System.Windows.Forms.Keys]::Enter) {
        #logic
        $textbox.Text | Out-Host
    }
})

$form.Controls.Add($textbox)

$form.ShowDialog()