The application started as a simple thing based on a spreadsheet.
After the limitations of using Excel as a datasource became enough of a pain, I recreated everything in Sharepoint using lists.
On my "New Ticket" page, I could not even figure out how to reconnect the data cards within the form to the new source. So I deleted them one at a time and re-added. Problem solved.
But in that process, I discovered that SP names things like "field_1" etc. I tried changing to the display name which interestingly will then not cause an error but simply won't work when you submit. So I changed them all back.
This morning it was time to mod the "Details" page. I was able to find the "field_X" names using the Edit Settings trick to see them in the url. I thought I was golden and changed all of the data cards to point to the correct fields. When all the data populated in the form for editing, I thought I was solid.
But no... there is something else happening I cannot figure out. Every single card is pointed to the correct field/fieldname and none of the controls show any errors. And the correct data from the source appears when the page loads.
But when I SubmitForm, an Unknown error occurs.
Does anyone know how to fix this without manually removing and adding the controls again?
And if the answer is no, is it possible to pre-define colour, border colour, fill, hover fill etc? Fixing formatting takes far longer than fixing the data connection itself.