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customizeChartElement(customizeChartElementFunction: Function)

[starting from version: 2.8.8]

This API call allows customizing separate chart elements in Flexmonster Charts. For example, you can add custom attributes or set element colors. Learn more in this guide: Customizing the pivot charts.

customizeChartElement can be defined in two ways:

  1. As a regular API call: flexmonster.customizeChartElement(customizeChartElementFunction).
  2. As an initialization parameter: new Flexmonster({customizeChartElement: customizeChartElementFunction, ...}).


  • customizeChartElementFunction – Function. It has the following signature: customizeChartElementFunction(element: HTMLElement | SVGElement, data: ChartDataObject | ChartLegendDataObject): Object.
    Data passed to the customizeChartElementFunction:If the customizeChartElementFunction is set to null, no customization is applied.


Highlighting chart elements containing info about a certain member regardless of their position:

function customizeChartElementFunction(element, data) {
  let newColor = "purple";
  let memberToHighlight = "country.[united states]";
  /* contains() is a function that checks whether
     a given member is present in rows or column */
  if (contains(data, memberToHighlight)) {
  /* highlight the given member in rows or columns */
    if (data.chartType == "pie") {
      if (element.querySelector('path')) {
        element.querySelector('path').style.fill = newColor;
    } else { = newColor;

  /* change the legend item color for the given member */
  if (data && data.type == 'legend') {
    if (data.member && data.member.uniqueName == memberToHighlight &&
      !data.isExpanded) {
        .backgroundColor = newColor;
   /* isChild() is a function that checks whether
      the current member is a child of the given member */ 
    if (data.tuple && isChild(data.tuple, data.member.uniqueName,
        memberToHighlight) && !data.isExpanded) {
        .backgroundColor = newColor;

See the full code on JSFiddle.

See also

Customizing the pivot charts