JavaScript/jQuery Chart - Overview
A tooltip is a small pop-up rectangle displaying information about a series point that the user pauses on. By default, the information is the point value, but it is possible to display anything in a tooltip.
All properties configuring tooltips are collected in the tooltip object. For example, to enable the tooltips, assign true to the enabled property of this object.
- $(function() {
- $("#chartContainer").dxChart({
- // ...
- tooltip: {
- enabled: true
- }
- });
- });
Properties declared in the tooltip object apply to all tooltips in the Chart. If you want to customize a specific tooltip, assign a function to the customizeTooltip property. This function must return an object with properties for the tooltip that you want to customize.
- $(function() {
- $("#chartContainer").dxChart({
- // ...
- tooltip: {
- enabled: true,
- color: 'yellow',
- // Paints the tooltips of all points whose value is more than 100 in red
- // Other tooltips remain painted in yellow
- customizeTooltip: function (pointInfo) {
- return pointInfo.value > 100 ? { color: 'red' } : { };
- }
- }
- });
- });
See Also
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