I did what you suggested, at indeed it works...
I tried to remove the delete button, but the page kept giving me errors, so I build the pages again, without the delete button..
Again following the tutorial "Integrating Databridge and eCart"
I removed the original add button and added the eCart add button. the detail page works BUT
When adding the add cart button to the product_results page the page dont work..
I have attached the pages, original works, and with the eCart add button it dont...
There must be a bug in this "Integrating Databridge and eCart" procedure
Can you see whats the error ?