I use Sysextension Form on TYPO3 8.7 and want to prefill input field with get parameter. In Formhandler extension it was easy possible with Tx_Formhandler_PreProcessor_LoadDefaultValues. But how does it work on new form extension?
Thanks for help!
Martin
Thanks to Stefan from Facebook - solution found on TypoScript Setup Codebox für tx_form - important is renderables { 0 { -> where "0" is number of array index of field in yaml setup. So in my case the field for "datum" is first input field of configuration.