Accessing or Overriding Series Name Used in SpreadJS Chart Tooltips

Accessing or Overriding Series Name Used in SpreadJS Chart Tooltips

Posted by: ajha on 29 December 2025, 3:41 am EST

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  ajha

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  Posted 29 December 2025, 3:41 am EST

  Hello Team,

  We need some guidance specifically on how the series name used in chart tooltips / hover UI can be accessed or overridden as shown in the image below.

  Issue

  When hovering over a chart element (e.g., a bar in a Bar Chart), SpreadJS displays a tooltip that includes the series name.
  
  This series name originates from spreadsheet cell values (typically header cells).

  We need to programmatically access the exact series name string that SpreadJS resolves and displays in the tooltip, or override it before rendering.

  Questions

  What is the exact source of the tooltip series name?

  Is it taken from:

  series.name

  seriesMapping

  Header cells in the data range

  An internal derived value

  Is there any supported API, event, or callback to:

  Read the resolved series name at hover time

  or

  Customize / override the tooltip text (or series label) before it is displayed

  If no tooltip-specific API exists:

  What is the recommended and supported way to control or access the series name used in chart hover UI?

  Thank you for your support.

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  ajha

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  Posted 29 December 2025, 3:44 am EST - Updated 29 December 2025, 3:49 am EST

  

  2072×1030 105 KB

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  chirag.gupta

  

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  Posted 29 December 2025, 4:23 am EST

  Hi,

  Support assistance for MESCIUS USA products is available to customers with an active subscription and valid support entitlement.

  We’re unable to provide product support through the forum in this case. Please contact our support or billing team directly at customerengagement@mescius.com so we can address your account status privately.

  Kind Regards,
  
  Chirag