Hi Udompon Udomvanit,
In Mendix, when you use an enumeration attribute as an axis (for example in a chart or pivot grid), the platform will by default only render the enum values that are actually present in your dataset.
There is no built‑in option to automatically expand and show all enum values across the axis regardless of usage.
If you want all enum values displayed, you need to pre‑populate your dataset with placeholder rows for each enum item, or build a helper entity/microflow that generates one record per enum value before feeding it into the widget.
This way, the chart/grid sees every enum value and renders them, even if the “real” data doesn’t contain that value.