add field in tl_page palettes

Hello,
I want to add the field in the page form with a extension.
But I don't have the error message...

Code:

---

// Modify palette
$GLOBALS['TL_DCA']['tl_page']['palettes']['default'] = str_replace('alias', 'test_check;alias', $GLOBALS['TL_DCA']['tl_page']['palettes']['default']);

// Add field
$GLOBALS['TL_DCA']['tl_page']['fields']['test_check'] = array(
  'label'      => &$GLOBALS['TL_LANG']['tl_page']['test_check'],
  'exclude'  => true,
  'inputType'  => 'checkbox',
  'eval'      => array(

  )
);

---

this code is true ? ?

Have you also updated the database so test_check field exists in tl_page table?

yes.. the database is updated...

Well, the code seems to be correct. What's the problem? The field does not display?

what is the name of the directory that contains the extension?

system > drop_navigation > dca > tl_page.php

The field does not display

It should be /system/modules/drop_navigation/dca/tl_page.php

the page dca has several palettes, I think you are not showing the "default" palette

try to add your field to the "regular" palette

Code:

---

$GLOBALS['TL_DCA']['tl_page']['palettes']['regular']

---

yes ! !
thanks ga.n

this is the correct code :

Code:

---

$GLOBALS['TL_DCA']['tl_page']['palettes']['regular'] = str_replace('title', 'title,dn_check', $GLOBALS['TL_DCA']['tl_page']['palettes']['regular']);

// Add field
$GLOBALS['TL_DCA']['tl_page']['fields']['dn_check'] = array(
  'label'      => &$GLOBALS['TL_LANG']['tl_page']['dn_check'],
  'exclude'  => true,
  'inputType'  => 'checkbox',
  'eval'        => array('tl_class'=>'w50')
);

---