Could somebody help me to apply form validation directly in admin html files?
Here is my code for example:

<form method="post" id="commercial_invoice_create_form" name="commercial_invoice_create_form"  action="<?php echo $block->getUrl('adminhtml/commercialinvoice/save',['order_id' => $_order->getId()]);?>"'>
    <?php echo $block->getChildHtml('formkey-ci')?>

    <div class="field airway_billno required">
        <label class="label" for="airway_billno"><?php echo __('International Air Waybill Number') ?></label>
        <div class="control">
            <input name="airway_billno" id="airway_billno"
            title="International Air Waybill Number" class="input-text  required-entry _required"
            type="text" data-validate="{required:true}" aria-required="true">
    <button id="commercial_invoice_save_button" title="Submit Invoice" type="button" class="action-default scalable action-save action-secondary" data-ui-id="widget-button-0">
        <span>Submit Invoice</span>

    ], function($){
        $(document).ready(function () {
        $('#commercial_invoice_save_button').click(function () { // The button type should be "button" and not submit
            var dataForm = $('#commercial_invoice_create_form');
            var ignore = null;
            dataForm.mage('validation', {
                ignore: ignore ? ':hidden:not(' + ignore + ')' : ':hidden'
            }).find('input:text').attr('autocomplete', 'off');

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