Magento Articles and Tips for Developers

 
<?php
...
    public function saveAction() {
        if ( $this->getRequest()->getPost() ) {
            try {
                $postData = $this->getRequest()->getPost();
 
		}
		catch (Exception $e) {
                Mage::getSingleton('adminhtml/session')->addError($e->getMessage());
                Mage::getSingleton('adminhtml/session')->setFormData($postData);
 
                $this->_redirect('*/*/edit');
                return;			
		}
...

<?php
 
...
    public function editAction() {
 
            if ($data = Mage::getSingleton('adminhtml/session')->getFormData()) {
                Mage::register('modulename_data', $modulename->addData($data));
                Mage::getSingleton('adminhtml/session')->setFormData(null);
            }
 
        $this->loadLayout();
        $this->renderLayout();
    }

 
<?php
...
    protected function _prepareForm() {
 
        $form = new Varien_Data_Form();
 
        $vendor = Mage::registry('modulename_data');
        $formValues = $vendor->getData();
 
        $form->setValues($formValues);
        return parent::_prepareForm();
    }