Hello everyone,
I’m a beginner in FlutterFlow, but I’m eager to learn and work towards becoming a developer.
Here’s my situation: I’ve read many articles to figure out how to set up a selectable DataTable and send the selected records to the backend for further data modifications. However, I found FlutterFlow to be quite lacking in this area. I couldn’t find a way to use the built-in checkbox functionality in the DataTable to achieve this feature, so I added a checkbox component manually. Then, I used a custom action to generate the required JSON list.
After putting in a lot of effort to implement this functionality, I’m now focusing on error handling. Specifically, I want to prevent the table from displaying a greyed-out area when it fails to retrieve the correct JSON format or data—whether due to formatting errors, incorrect paths, or missing JSON files.
Initially, my solution was to create an empty map that follows the expected JSON structure. This way, the page will always have a valid JSON format available for ListView and DataTable to read. However, I encountered an issue: FlutterFlow seems to require at least two records in the JSON data for the table to work correctly.
Even when I provide real data, the system doesn’t accept a single record. Instead, it requires one real record plus an additional empty item. If there are already two or more records, everything works fine.
My question is: Why does this happen?
Is there a built-in limitation that requires at least two records?
Right now, my workaround is to write a script that automatically adds an empty record whenever there’s only a single data entry. However, this feels like a hacky solution, and I wonder if there’s a better way to handle this.
Thanks for taking the time to read my question—I appreciate any insights or explanations!