i am working on magento admin. try to adding grid with add edit action. but i am stuck at strange issue my form is display in left sidebar under selected tab. don't know why this happen. please help me if you know why this is happen

Code of XXXX/XXX/Block/Adminhtml/Dragon/Edit/Form.php

<?php

class XXXX_XXX_Block_Adminhtml_Dragon_Edit_Form extends Mage_Adminhtml_Block_Widget_Form
{
  protected function _prepareForm()
  {
      $form = new Varien_Data_Form(array(
                                      'form_id' => 'edit_form',
                                      'action' => $this->getUrl('*/*/save', array('form_id' => $this->getRequest()->getParam('form_id'))),
                                      'method' => 'post',
                                      'enctype' => 'multipart/form-data'
                                   )
      );

      $form->setUseContainer(true);
      $this->setForm($form);
      $this->setTemplate('XXXX/form.phtml');
      return parent::_prepareForm();
  }
}

I am working on magento admin. Try to adding grid with add edit action. But I am stuck at strange issue my form is display in left sidebar under selected tab. Don't know why this happen. Please help me if you know why this is happen

Code of XXXX/XXX/Block/Adminhtml/Dragon/Edit/Form.php

<?php

class XXXX_XXX_Block_Adminhtml_Dragon_Edit_Form extends Mage_Adminhtml_Block_Widget_Form
{
  protected function _prepareForm()
  {
      $form = new Varien_Data_Form(array(
                                      'form_id' => 'edit_form',
                                      'action' => $this->getUrl('*/*/save', array('form_id' => $this->getRequest()->getParam('form_id'))),
                                      'method' => 'post',
                                      'enctype' => 'multipart/form-data'
                                   )
      );

      $form->setUseContainer(true);
      $this->setForm($form);
      $this->setTemplate('XXXX/form.phtml');
      return parent::_prepareForm();
  }
}

i am working on magento admin. try to adding grid with add edit action. but i am stuck at strange issue my form is display in left sidebar under selected tab. don't know why this happen. please help me if you know why this is happen

i am working on magento admin. try to adding grid with add edit action. but i am stuck at strange issue my form is display in left sidebar under selected tab. don't know why this happen. please help me if you know why this is happen

Code of XXXX/XXX/Block/Adminhtml/Dragon/Edit/Form.php

<?php

class XXXX_XXX_Block_Adminhtml_Dragon_Edit_Form extends Mage_Adminhtml_Block_Widget_Form
{
  protected function _prepareForm()
  {
      $form = new Varien_Data_Form(array(
                                      'form_id' => 'edit_form',
                                      'action' => $this->getUrl('*/*/save', array('form_id' => $this->getRequest()->getParam('form_id'))),
                                      'method' => 'post',
                                      'enctype' => 'multipart/form-data'
                                   )
      );

      $form->setUseContainer(true);
      $this->setForm($form);
      $this->setTemplate('XXXX/form.phtml');
      return parent::_prepareForm();
  }
}