I was wondering for a long time if this is possible. To add a file upload to a TYPO3 Flexform. But i never had the real need to implement something like this. Until today.
I run into a problem where the only solution seemed to be a file upload in the extension’s flexform. And i started digging. The solution is at hand and it is simple. You only need to add the following code into the flexform definition file and customize it according to your needs:
group file gif, jpg,jpeg,png,csv 10000 uploads/tx_axprice 1 1 1 Width:180px