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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.

DevExtreme HTML5 JavaScript Charts 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.

jQuery
JavaScript
$(function() {
    $("#chartContainer").dxChart({
        // ...
        tooltip: {
            enabled: true
        }
    });
});
Angular
HTML
TypeScript
<dx-chart ... >
    <dxo-tooltip
        [enabled]="true">
    </dxo-tooltip>
</dx-chart>
import { DxChartModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxChartModule
    ],
    // ...
})
Vue
App.vue
<template> 
    <DxChart ... >
        <DxTooltip
            :enabled="true"
        />
    </DxChart>
</template>

<script>
import DxChart, {
    DxTooltip
} from 'devextreme-vue/chart';

export default {
    components: {
        DxChart,
        DxTooltip
    }
}
</script>
React
App.js
import React from 'react';
import Chart, {
    Tooltip
} from 'devextreme-react/chart';

class App extends React.Component {
    render() {
        return (
            <Chart ... >
                <Tooltip
                    enabled={true}
                />
            </Chart>
        );
    }
}

export default App;

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.

jQuery
JavaScript
$(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' } : { };
            }
        }
    });
});
Angular
HTML
TypeScript
<dx-chart ... >
    <dxo-tooltip
        [enabled]="true"
        color="yellow"
        [customizeTooltip]="customizeTooltip">
    </dxo-tooltip>
</dx-chart>
import { DxChartModule } from "devextreme-angular";
// ...
export class AppComponent {
    // Paints the tooltips of all points whose value is more than 100 in red
    // Other tooltips remain painted in yellow
    customizeTooltip (pointInfo: any) {
        return pointInfo.value > 100 ? { color: 'red' } : { };
    };
}
@NgModule({
    imports: [
        // ...
        DxChartModule
    ],
    // ...
})
Vue
App.vue
<template> 
    <DxChart ... >
        <DxTooltip
            :enabled="true"
            :customize-tooltip="customizeTooltip"
            color="yellow"
        />
    </DxChart>
</template>

<script>
import DxChart, {
    DxTooltip
} from 'devextreme-vue/chart';

export default {
    components: {
        DxChart,
        DxTooltip
    },
    methods: {
        customizeTooltip (pointInfo) {
            return pointInfo.value > 100 ? { color: "red" } : { };
        }
    }
}
</script>
React
App.js
import React from 'react';
import Chart, {
    Tooltip
} from 'devextreme-react/chart';

class App extends React.Component {
    render() {
        return (
            <Chart ... >
                <Tooltip
                    enabled={true}
                    color="yellow"
                    customizeTooltip={customizeTooltip}
                />
            </Chart>
        );
    }
}

function customizeTooltip(pointInfo) {
    return pointInfo.value > 100 ? { color: "red" } : { };
}

export default App;
See Also