Magento Add new input type in custom options

By Default Magento Product Custom options has following field which have radio,checkbox,Multiple select,Select....so if we need to add new input type in that custom options so here is the code

Note : Make sure that Don't disturb the Core Files always use Magento Standard


1) Open the file and copy in local folder
app/code/core/Mage/catalog/etc/config.xml

<multiplenew translate="label" module="adminhtml">

<label>Multiple Select New</label>

</multiplenew>

2) Open the file and copy in local folder
app/code/core/Mage/Eav/Model/Adminhtml/system/config/Source/inputype.php

array('value' => 'multiselectnew', 'label' => Mage::helper('eav')->__('MultipleNew Select')),

3) Open the file and copy in local folder
default/default/tempalte/catalog/product/edit/options/option.phtml

In this file you will found three case of multiple just above that

case 'multiple': //already there line 152
case 'multiplenew': //add above

case 'multiple': //already there line 211  
case 'multiplenew'://add above

case 'multiple': //already there line 233                    
case 'multiplenew'://add above

case 'multiple': //already there line 265
case 'multiplenew'://add above

Note :Here Multiplenew is the new field
Clear the cache and run new input type will come.Hope this will help you!