model view controller - Magento Adminhtml: Where do forms come from? -

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my question comes seeing question , not being able find correct answer.

when adding new product, actual code come input fields? in aforementioned question, desire add maxlength attribute input box. dug around on hour , did find plenty of form helpers not 1 exact case.

how find true origin of (or any) form in magento?

if i'm understanding question correctly, majority of magento's form fields come varian_data_form can specify maxlength property via higher call, in:

$fieldset->addfield('title', 'text', array(           'label'     => mage::helper('form')->__('title3'),           'maxlength' => '30', // <-- change here           'class'     => 'required-entry',           'required'  => true,           'name'      => 'title',           'onclick' => "alert('on click');",           'onchange' => "alert('on change');",           'style'   => "border:10px",           'value'  => 'hello !!',           'disabled' => false,           'readonly' => true,           'after_element_html' => '<small>comments</small>',           'tabindex' => 1         ));

example (and modified) from:

related:


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