dosubot[bot] commented on issue #35521: URL: https://github.com/apache/superset/issues/35521#issuecomment-3370724992
<!-- Answer --> The empty tooltip in the Calendar Heatmap chart is most likely caused by the valueFormatter or timeFormatter functions returning empty strings or not being set correctly. The chart uses the CalHeatMap library, which generates tooltip content using these formattersāif either is missing, misconfigured, or the data passed to them is blank, the tooltip will render but show no content. This can also happen if the chart data for the hovered cell is missing or malformed. To troubleshoot, check that your valueFormatter and timeFormatter functions always return a non-empty string, and verify that your chart data includes valid values for each cell you expect to show a tooltip. Also, inspect the browser console for any errors when hovering over cells, as runtime errors in tooltip HTML generation can cause similar issues in other chart types [source](https://github.com/apache/superset/blob/master/superset-frontend/plugins/legacy-plugin-chart-calendar/src/Calendar.js). <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/565ab844-7634-4d1a-953f-e9462bd09db9?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/565ab844-7634-4d1a-953f-e9462bd09db9?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/565ab844-7634-4d1a-953f-e9462bd09db9?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/565ab844-7634-4d1a-953f-e9462bd09db9?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/565ab844-7634-4d1a-953f-e9462bd09db9?feedback_type=hallucination) | [Report š](https://app.dosu.dev/response-feedback/565ab844-7634-4d1a-953f-e9462bd09db9?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/565ab844-7634-4d1a-953f-e9462bd09db9?feedback_type=other)</sup> [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=githu b) [](https://go.dosu.dev/discord-bot) [](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/superset/issues/35521) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
