I have block:

<block class="Magento\Backend\Block\Widget\Grid\Column" as="name">
        <argument name="header" xsi:type="string" translate="true">Title</argument>
        <argument name="index" xsi:type="string">title</argument>
        <argument name="header_css_class" xsi:type="string">col-title</argument>
        <argument name="column_css_class" xsi:type="string">col-title</argument>

I want to overwrite "header" argument without changing this block. I tried:

<referenceBlock name="name">
            <argument name="header" xsi:type="string" translate="true">my value</argument>

but it is not working. When I added name="name" to original block, it worked. So how can I refer to original block without editing it?

1 Answer 1


You cannot, you need a name attribute to use a referenceBlock or referenceContainer.

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