Accessing Form Controls from a function

PowerShell Help
1

I am trying to write to a textbox from a function. Can you please help me to do that.
I am not sure how this line should be >>> $Form.Controls.textbox.Text = “test” <<<<

    cls Function fnc_Generate_Form { 
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing


$Form = New-Object system.Windows.Forms.Form
$Form.StartPosition = &quot;CenterScreen&quot;
$Form.Topmost = $True
$Form.size = New-Object System.Drawing.Size(200,200)
$Form.Text = &quot;DBA Assist&quot;
$Form.DataBindings.DefaultDataSourceUpdateMode = 0

$textbox = New-Object System.Windows.Forms.TextBox
$textbox.Location =&#039;10,10&#039;
$textbox.Size = &#039;100,100&#039;
$Form.Controls.Add($textbox)

$WriteToTextBox = New-Object System.Windows.Forms.Button
$WriteToTextBox.Location = New-Object System.Drawing.Size(35,100)
$WriteToTextBox.Size = New-Object System.Drawing.Size(120,23)
$WriteToTextBox.Text = &quot;Write To TextBox&quot;
$Form.Controls.Add($WriteToTextBox)

#Add Button event 
$WriteToTextBox.Add_Click(
    {
    fnc_WriteToTextBox $Form
    
    }
)


$Form.ShowDialog()

}

Function fnc_WriteToTextBox
{ Param($Form)

$Form.Controls.textbox.Text = &quot;test&quot;

}

fnc_Generate_Form

2

Ok, So i have a solution , but hoping someone replies with something better

    Function fnc_WriteToTextBox { Param($Form, $textbox) 
#$Form.Controls.textbox.Text = "test"
$textbox.Text = "test"

}