Magento – need to add custom template file inside form container magento admin

blocksmagento-1.9widget-instance

What i have tried is the following.

I have a class which extends Mage_Adminhtml_Block_Widget_Form. Inside that i have the _prepareLayout function. Now i have set a block inside that function like this.

echo $this->getLayout()->createBlock('adminhtml/template')->setTemplate('path/tothefile.phtml')->toHtml();

Its working. But the issue is i have a javascript code inside this .phtml file and its running twice.

May be because of the core/text_list block type of widget instance or for the toHtml() . Do you guys have any idea whats wrong.

Best Answer

Add __toHtml() method in form container block.

    protected function _toHtml() {
        $tabsContainer = $this->getLayout()->createBlock('core/text', 'example-block')->setText('<div id="messages"><ul class="messages"><li class="error-msg"><ul><li><span>CreateBlock.</span></li></ul></li></ul></div>');

        return parent::_toHtml() .
                $tabsContainer->toHtml() .
                '<div data id="tabs_container"></div>';
    }
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