Public/Enable-WFTextBox.ps1

function Enable-WFTextBox
{
<#
    .SYNOPSIS
        This function will enable a TextBox control
     
    .DESCRIPTION
        This function will enable a TextBox control
     
    .PARAMETER TextBox
        Specifies the TextBox control to enable
     
    .EXAMPLE
        Enable-WFTextBox -TextBox $TextBox
     
    .NOTES
        Francois-Xavier Cat
        @lazywinadm
        www.lazywinadmin.com
        github.com/lazywinadmin
#>

    
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true)]
        [ValidateNotNull()]
        [System.Windows.Forms.TextBox]$TextBox
    )
    
    BEGIN
    {
        Add-Type -AssemblyName System.Windows.Forms
    }
    PROCESS
    {
        $TextBox.Enabled = $true
    }
}