Override Third Party Module's Block File in Magento 2

Question

I Installed Third party module under app/code folder. I created another module under same app/code directory to override the third party module. I specified

<preference for="[Third party Name Space]\Block\File" type="[Name Space]\[My Module]\Block\File" />

in di.xml but still I cannot override the Block file of third party module.

• Rakesh Jesadiya: What's the issue you are facing?
• Quasar M: I cant able to override third party module's block file. I followed this answer too magento.stackexchange.com/a/210100/63813
• Quasar M: I created custom module and enabled to override that third party module and I specified <preference for="[Third party Name Space]\Block\File" type="[Name Space][My Module]\Block\File" /> in di.xml, but still the block file is rendering from third party module instead of from my custom module.

Answer 1

Overriding also depends upon the module sequence. So you can check in app/etc/config.php if your module is after than the 3rd party module or not. And if not then you can add the sequence in your etc/module.xml to load your module after the 3rd party module. For getting the detail overview of overriding you can check this link https://devdocs.magento.com/guides/v2.2/extension-dev-guide/build/module-load-order.html

• Quasar M: Of course, I added the sequence to depend third party module in my custom module's module.xml, but still the block file is rendering from third party module.