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Is double tap callback supported?


I'd like to use double tap callback, I remember it was supported but disappear now?

How to do that?

7 Replies 1 reply marked as answer

YG Yuvaraj Gajaraj Syncfusion Team April 3, 2023 10:52 AM UTC

Hi Zhu,

We suspect that you have asked about the series double tap callback, for that we have an onPointDoubleTap callback event in the series itself, so you can access the callback and achieve your requirement. We have shared the related UG documentation below for your reference.

UG, https://help.syncfusion.com/flutter/cartesian-charts/callbacks#onpointdoubletap



Marked as answer

ZH Zhu April 4, 2023 06:30 AM UTC

Hi, Yuvaraj,

That's exactly what I was looking for,

Thank you so much for the help.

Best Regards,


YG Yuvaraj Gajaraj Syncfusion Team April 5, 2023 04:50 AM UTC

Most Welcome. Kindly get back to us if you have further queries. We are always happy to assist you.

ZH Zhu May 30, 2023 05:27 AM UTC

Hi, Yuvaraj,

I have problem on using realtime chart, and posted it in forum, but no one replys.

Would you please take a look and advise?

Here's the link: 


LP Lokesh Palani Syncfusion Team May 31, 2023 04:44 AM UTC

Hi Zhu,

We have provided an answer to the query above. Please check the answered link below. Please get back to us if you need any further assistance.





ZH Zhu May 31, 2023 07:46 AM UTC

Hi, Lokesh,

Cool, let's talk there.



LP Lokesh Palani Syncfusion Team June 2, 2023 09:48 PM UTC

Hi Zhu,

We cannot predict the data before preloading it into the chart. However, we can dynamically update the data points after the chart has been rendered using the updateDataSource method.

As per the screenshot, in y axis datapoints you have given zero value. So, only the segments were rendered on axis range. The datapoints was rendered based on the segment only. It was not an issue. We have provided the simple sample using stream for your requirement.



Attachment: chart_182613_913b92bf.zip

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