function actionDefault()
{
// Create the form
$form = new YDForm('form1', 'GET', '', '_self', array('class' => 'myform'));
// Add elements
$form->addElement('text', 'txt1', 'Enter text 1:');
$form->addElement('text', 'txt2', 'Enter text 2:');
$form->addElement('submit', 'cmdSubmit', 'submit');
$form->addRule('txt1', 'required', 'txt1 is required');
$form->addRule('txt1', 'maxlength', 'txt1 must be smaller than 15', 15);
$form->addCompareRule(array('txt1', 'txt2'), 'equal', 'txt1 and txt2 must be equal');
$form->addFormRule('formrule1');
$form->addFormRule(array('YDValidateRule', 'formrule2'));
$form->addFilter('txt1', 'trim');
$form->addFilter('txt2', 'trim');
// Convert the form to XML
$xml = $form->render('xml');
YDDebugUtil::dump($xml, 'Form as XML data');
//YDDebugUtil::dump( $form );
// Recreate a new form from the XML data
$form2 = new YDForm('form1');
$form2->import('xml', $xml);
//YDDebugUtil::dump( $form2 );
YDDebugUtil::dump(array_diff_assoc($form->toArray(), $form2->toArray()), 'toArray difference');
YDDebugUtil::dump(array_diff_assoc($form->_attributes, $form2->_attributes), '_attributes difference');
YDDebugUtil::dump(array_diff_assoc($form->_elements, $form2->_elements), '_elements difference');
YDDebugUtil::dump(array_diff_assoc($form->_rules, $form2->_rules), '_rules difference');
YDDebugUtil::dump(array_diff_assoc($form->_filters, $form2->_filters), '_filters difference');
YDDebugUtil::dump(array_diff_assoc($form->_comparerules, $form2->_comparerules), '_comparerules difference');
YDDebugUtil::dump(array_diff_assoc($form->_formrules, $form2->_formrules), '_formrules difference');
YDDebugUtil::dump(array_diff_assoc($form->_regElements, $form2->_regElements), '_regElements difference');
YDDebugUtil::dump(array_diff_assoc($form->_regRules, $form2->_regRules), '_regRules difference');
YDDebugUtil::dump(array_diff_assoc($form->_regFilters, $form2->_regFilters), '_regFilters difference');
YDDebugUtil::dump(array_diff_assoc($form->_regRenderers, $form2->_regRenderers), '_regRenderers difference');
}