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Adding and removing series dynamically on multi-axis chart causes redraw error #8075

gbenthomas opened this issue Mar 23, 2018 · 1 comment


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@gbenthomas gbenthomas commented Mar 23, 2018

Expected behaviour

Adding and removing series with separate yAxis should work properly in the following steps:

  1. Create yAxis1 and series1. Set series1.yAxis = 1 (index of yAxis1)
  2. Update all yAxis offsets
  3. Create yAxis2 and series2. Set series2.yAxis = 2 (index of yAxis2)
  4. Update all yAxis offsets
  5. Remove yAxis1 (and corresponding series)
  6. Update all yAxis offsets
  7. Create yAxis3 and series3. Set series3.yAxis = 2 (index of yAxis3 since yAxis1 was removed)
  8. Update all yAxis offsets
  9. Remove yAxis3 (and corresponding series)

Actual behaviour

In step 7 above, series3 gets associated with yAxis2 and yAxis3 which should not happen.
Subsequently, in step 9, redrawing causes the error (in Chrome):
Uncaught TypeError: Cannot read property 'isDirty' of undefined

Note that removing step 6 prevents this error so it seems to be related to the yAxis.update() call.

Live demo with steps to reproduce

Click on the "Add/Remove Series" button which executes the steps listed above.

Product version

Highstock 6.0.7

Affected browser(s)

Chrome, Firefox, IE

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@pawelfus pawelfus commented Mar 26, 2018

Hi @gbenthomas

Thank you for reporting this bug!

Internal note:
Not related to Highstock, general issue:

Reset indexes after each operation:

Highcharts.addEvent(Highcharts.Chart.prototype, 'redraw', function() {
  Highcharts.each(this.yAxis, function(axis, i) {
    axis.userOptions.index = axis.options.index = i;
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