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Update custom legend onClick example #9219

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Jun 2, 2021
Merged

Update custom legend onClick example #9219

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9 changes: 8 additions & 1 deletion docs/configuration/legend.md
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Original file line number Diff line number Diff line change
Expand Up @@ -171,12 +171,19 @@ Lets say we wanted instead to link the display of the first two datasets. We cou

```javascript
var defaultLegendClickHandler = Chart.defaults.plugins.legend.onClick;
var pieDoughnutLegendClickHandler = Chart.controllers.doughnut.overrides.plugins.legend.onClick;
var newLegendClickHandler = function (e, legendItem, legend) {
var index = legendItem.datasetIndex;
var type = legend.chart.config.type;

if (index > 1) {
// Do the original logic
defaultLegendClickHandler(e, legendItem, legend);
if (type === 'pie' || type === 'doughnut') {
pieDoughnutLegendClickHandler(e, legendItem, legend)
} else {
defaultLegendClickHandler(e, legendItem, legend);
}

} else {
let ci = legend.chart;
[
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