magento adminhtml custom module it's showing the grid twice

Question

i am new to magento by following this guide Custom Module with Custom Database Table

i have implemented my already existed module to the backend adminhtml. i am taking stuff from the database and sjowing ot on the adminhtml page. Everything works ok except i am getting the grid twice on the adminhtml. i am getting the same Grid two time. i have looked the code for like 2 hours cannot figure it out. if anyone one knows how to fix this problem i will be greatly thakful. cheers

thats the code from my grid.php

<?php

      class Ecom_Pricenotify_Block_Adminhtml_Pricenotify_Grid extends Mage_Adminhtml_Block_Widget_Grid{
public function __construct()
{
    parent::__construct();
    $this->setId('pricenotifyGrid');
    // This is the primary key of the database
    $this->setDefaultSort('pricenotify_id');
    $this->setDefaultDir('ASC');
    $this->setSaveParametersInSession(true);
}

protected function _prepareCollection()
{
    $collection = Mage::getModel('pricenotify/pricenotify')->getCollection();
    $this->setCollection($collection);
    return parent::_prepareCollection();
}

protected function _prepareColumns()
{
    $this->addColumn('pricenotify_id', array(
        'header'    => Mage::helper('pricenotify')->__('Notification ID'),
        'align'     =>'left',
        'width'     => '50px',
        'index'     => 'pricenotify_id',
    ));

    $this->addColumn('prod_id', array(
        'header'    => Mage::helper('pricenotify')->__('Product ID'),
        'align'     =>'left',
        'width'     => '50px',
        'index'     => 'prod_id',
    ));


    $this->addColumn('prod_price', array(
        'header'    => Mage::helper('pricenotify')->__('Product Price'),
        'align'     =>'left',
        'width'     => '50px',
        'index'     => 'prod_price',
    ));

    $this->addColumn('user_price', array(
        'header'    => Mage::helper('pricenotify')->__('User Price'),
        'align'     =>'left',
        'width'     => '50px',
        'index'     => 'user_price',
    ));

    $this->addColumn('email', array(
        'header'    => Mage::helper('pricenotify')->__('E-Mail Address'),
        'align'     =>'left',
        'width'     => '150px',
        'index'     => 'email',
    ));

    $this->addColumn('created_time', array(
        'header'    => Mage::helper('pricenotify')->__('Creation Time'),
        'align'     => 'left',
        'width'     => '120px',
        'type'      => 'date',
        'default'   => '--',
        'index'     => 'created_time',
    ));


    $this->addColumn('status', array(

        'header'    => Mage::helper('pricenotify')->__('Status'),
        'align'     => 'left',
        'width'     => '80px',
        'index'     => 'status',
        'type'      => 'options',
        'options'   => array(
            'success' => 'Inactive',
            'pending' => 'Active',
        ),
    ));

   return parent::_prepareColumns();
}

public function getRowUrl($row)
{
   return $this->getUrl('*/*/edit', array('id' => $row->getId()));
}}

and this indexAction function is from the controller

  public function indexAction() {
    $this->_initAction();       
    $this->_addContent($this->getLayout()->createBlock('pricenotify/adminhtml_pricenotify'));
    $this->renderLayout();
  }

Answer 1

Maybe you're inserting it in the layout, check pricenotify.xml in

adminhtml>default>default>layout.

Such as:

  <pricenotify_adminhtml_manager_pricenotify>
        <block type="core/text_list" name="root" output="toHtml">
            <block type="pricenotify/adminhtml_pricenotify_grid" name="pricenotify.grid"/>
        </block>
  </pricenotify_adminhtml_manager_pricenotify>

Remove this block or comment the line where you add the content.

Answer 2

I fixed it. i only had to comment out

//$this->_addContent($this->getLayout()->createBlock('pricenotify/adminhtml_pricenotify'));

from indexAction i guess iwas loading it twice.

Answer 3

make sure that the grid block isn't already loaded in the corresponding layout.xml file.