I have tried this several ways with no success. First not sure difference between a plain page which I add a dataset to, and a dynamic page. My class index page if you click on a row or the userid column was linking to a detail page. I have tried this multiple different times/ways. First I had a link on only one row. Now I do have links on all the rows when I look at in the sandbox and in the live dataset, but none of the rows have a link.
Also created a new item input form, The submit button appears to work, and the images I upload appear in the image boxes, but the data is not being updated into the database.
Sorry for what I expect are user error.
Here is URL, it is live with disclaimers for any real lookers. https://www.png68.online/class-index