复制
app/code/core/Mage/Adminhtml/Block/Sales/Order/Grid.php
到
app/code/local/Mage/Adminhtml/Block/Sales/Order/Grid.php

copy
app/code/core/Mage/Adminhtml/Block/Sales/Order/Grid.php
to
app/code/local/Mage/Adminhtml/Block/Sales/Order/Grid.php

然后在下一行

$collection = Mage::getResourceModel($this->_getCollectionClass());

添加

$collection->getSelect()->joinLeft(array('sfo'=>'sales_flat_order'),'sfo.entity_id=main_table.entity_id',array('sfo.customer_email'));

然后在_prepareColumns()方法中添加

then in the _prepareColumns() method add

    $this->addColumn('customer_email', array(
        'header' => Mage::helper('sales')->__('Customer Email'),
        'index' => 'customer_email',
        'filter_index' => 'sfo.customer_email',
    ));

注意.您将需要向所有指向main_table.field_name的addColumn调用添加一个"filter_index"

note. you will need to add a 'filter_index' to all calls to addColumn pointing to main_table.field_name