Vue Chart - BarSeries

Describes settings supported by a series of the bar type.

Type:

Object

All the settings in this section are specified as follows:

  • The commonSeriesSettings object
    Specifies settings for all series in a Chart.

  • The commonSeriesSettings.bar object
    Specifies settings for all series of the bar type.

  • An object in the series array
    Specifies settings for an individual series.

View Demo

DevExtreme HTML5 Charts BarSeriesType

aggregation

Configures data aggregation for the series.

Selector: DxAggregation
Type:

Object

Displaying all the points of a Chart with many series points can affect performance. In this case, aggregate the series points or replace a group of them with a single point. The group includes only those points that fall within the same interval on the argument axis. See aggregationInterval and aggregationGroupWidth for details on dividing the axis into intervals.

The Chart provides several aggregation methods, which differ depending on the series type, and a capability to implement a custom aggregate function. To enable data aggregation for the series, set the aggregation.enabled property to true.

See Also

argumentField

Specifies which data source field provides arguments for series points.

Selector: argument-field
Type:

String

Default Value: 'arg'
Cannot be used in themes.

In the Cartesian coordinate system, each point is characterized by a pair of coordinates (X, Y). In the Chart UI component, X's are provided by the argumentField; Y's are provided by the valueField.

NOTE
Certain series types have more than one value field, or require additional data fields to be set. Refer to the valueField property description for details.

Commonly, a chart contains several series, and many of them have the same argument field. In this case, assign the name of this field to the argumentField property of the commonSeriesSettings object. If a series must have a unique argument field, specify the same property, but do so in the series object within the series array.

axis

Binds the series to a value axis.

Type:

String

Default Value: undefined

When there are multiple value axes in a chart, series need to know exactly which axis they are bound to. By default, all of them are bound to the first axis in the valueAxis array. To bind a series to another axis, assign the name of the axis to the axis series property.

View Demo

barOverlapGroup

Allows you to group bar series so that bars with the same argument overlap.

Selector: bar-overlap-group
Type:

String

Default Value: undefined

Set this property to identical values for the series you want to collect in a single group.

The following image shows a regular bar chart with two series...

DevExtreme Chart: Regular bar chart

...and here the same series are collected in a barOverlapGroup:

DevExtreme Chart: Bar chart with barOverlapGroup applied

View Demo

barPadding

Controls the padding and consequently the width of all bars in a series using relative units. Ignored if the barWidth property is set.

Selector: bar-padding
Type:

Number

Default Value: undefined

This property accepts a value from 0 to 1 that specifies the correlation between the empty space on a bar's sides and the bar's width: 0 - the bar occupies the whole allocated space; 1 - virtually hides the bar creating a lot of empty space.

See Also

barWidth

Specifies a fixed width for all bars in a series, measured in pixels. Takes precedence over the barPadding property.

Selector: bar-width
Type:

Number

Default Value: undefined

A bar's maximum width is limited. In single-series charts, it cannot be greater than the interval between two major ticks. In multi-series charts, it depends on the number of bars in the parent group and this group's actual width. See the Specify the Bar Width article for more information.

See Also

border

Configures the series border (in area-like series) or the series point border (in bar-like and bubble series).

Selector: DxBorder
Type:

Object

Declared in commonSeriesSettings, the border settings apply to all series in the chart. Declared in a series configuration object, the border settings apply to this particular series only. The series-specific border settings override the common ones.

color

Specifies the color of the series.

Selector: DxColor
Default Value: undefined

Specified in the commonSeriesSettings object, this property colors all series in the chart. To color an individual series, specify this property in the series object within the series array.

This property supports the following colors:

You can also specify a custom pattern or gradient instead of a plain color. Call the registerPattern() or registerGradient() method to obtain a fill ID. Assign that value to the fillId field.

This functionality is available for the following Chart series:

jQuery
index.js
$(function(){
    $("#chartContainer").dxChart({
        // ...
        series: {
            // ...
            color: {
                fillId: customPatternId
            }
        }
    });
});
Angular
app.component.html
app.component.ts
<dx-chart ... >
    <dxi-series 
        [color]="fill"
    >
    </dxi-series>
</dx-chart>
// ...

export class AppComponent {
    // ...

    fill = {
        fillId: this.customPatternId
    };
} 
Vue
App.vue (Options API)
App.vue (Composition API)
<template>
    <DxChart ... >
        <DxSeries :color="fill" />
        </DxSeries>
    </DxChart>
</template>

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

export default {
    components: {
        DxChart,
        DxSeries,
        DxSelectionStyle
    },
    data() {
        return {
            // ...
            fill: {
                fillId: this.customPatternId
            }
        }
    }
}
</script>
<template>
    <DxChart ... >
        <DxSeries :color="fill" />
    </DxChart>
</template>

<script setup>
import DxChart, { DxSeries, DxSelectionStyle } from 'devextreme-vue/chart';  
// ...

const fill = {
    fillId: customPatternId
};
</script>
React
App.js
import React from 'react';
import Chart, { Series, SelectionStyle } from 'devextreme-react/chart'; 

// ...
const fill = {
    fillId: customPatternId
};

export default function App() { 
    return ( 
        <Chart ... >
            <Series color={fill} />
        </Chart>        
    ); 
} 

cornerRadius

Makes bars look rounded. Applies only to bar-like series.

Selector: corner-radius
Type:

Number

Default Value: 0

hoverMode

Specifies series elements to be highlighted when a user points to a series.

Selector: hover-mode
Type:

String

Default Value: 'onlyPoint'
Accepted Values: 'onlyPoint' | 'allSeriesPoints' | 'allArgumentPoints' | 'none'

When a user points to a series, it may react in one of the following ways depending on the value of the hoverMode property.

hoverMode Result
"onlyPoint"
"allSeriesPoints"
"allArgumentPoints"
"none"
See Also
  • hoverStyle - specifies the appearance of series in the hover state.

hoverStyle

Configures the appearance adopted by the series when a user points to it.

Selector: DxHoverStyle
Type:

Object

Declared in commonSeriesSettings, hoverStyle applies to all series in the chart. Declared in a series configuration object, hoverStyle applies to this particular series only. The series-specific hoverStyle overrides the common one.

ignoreEmptyPoints

Specifies whether the series should ignore null data points.

Selector: ignore-empty-points
Type:

Boolean

Default Value: false

Data points that have the null value do not produce actual series points. Because of this, series may be drawn with unnecessary gaps where missing points should have been. To remove these gaps, set the ignoreEmptyPoints property to true.

label

Configures point labels.

Selector: DxLabel
Type:

Object

Declared in commonSeriesSettings, the label settings apply to all point labels in the chart. Declared in a series configuration object, the label settings apply only to the point labels that belong to this particular series. The series-specific label settings override the common ones.

jQuery
JavaScript
$(function() {
    $("#chartContainer").dxChart({
        // ...
        series: [{
            label: {
                // Settings for all point labels of an individual series
            }
        }, {
            // ...  
        }],
        commonSeriesSettings: {
            label: {
                // Settings for all point labels in the Chart
            }
        }
    });
});
Angular
app.component.html
app.component.ts
app.module.ts
<dx-chart ... >
    <dxi-series>
        <dxo-label ... >
            <!-- Settings for all point labels of an individual series -->
        </dxo-label>
    </dxi-series>
    <dxo-common-series-settings ... >
        <dxo-label ... >
            <!-- Settings for all point labels in the Chart -->
        </dxo-label>
    </dxo-common-series-settings>
</dx-chart>
import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    // ...
}
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxChartModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxChartModule
    ],
    providers: [ ],
    bootstrap: [AppComponent]
})
export class AppModule { }
Vue
App.vue
<template>
    <DxChart ... >
        <DxSeries ... >
            <DxLabel ...>
                <!-- Settings for all point labels of an individual series -->
            </DxLabel>
        </DxSeries>
        <DxCommonSeriesSettings ... >
            <DxLabel ... >
                <!-- Settings for all point labels in the Chart -->
            </DxLabel>
        </DxCommonSeriesSettings>
    </DxChart>
</template>

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

export default {
    components: {
        DxChart,
        DxSeries,
        DxLabel,
        DxCommonSeriesSettings
    },
    // ...
}
</script>
React
App.js
import React from 'react';

import Chart, {
    Series,
    Label,
    CommonSeriesSettings
} from 'devextreme-react/chart';

class App extends React.Component {
    render() {
        return (
            <Chart ... >
                <Series ... >
                    <Label ... >
                        // Settings for all point labels of an individual series
                    </Label>
                </Series>
                <CommonSeriesSettings ... >
                    <Label ... >
                        // Settings for all point labels in the Chart
                    </Label>
                </CommonSeriesSettings>
            </Chart>
        );
    }
}
export default App;

View Demo

See Also

maxLabelCount

Specifies a limit for the number of point labels.

Selector: max-label-count
Type:

Number

Default Value: undefined

If the number of points in a series increases over time, there comes a time when it becomes so massive that displaying labels for them makes the chart too cluttered. In this instance, to keep the chart clear to the viewer, specify a limit for the number of point labels using the maxLabelCount property. Once this limit is exceeded, all point labels of the series will be hidden.

minBarSize

Specifies the minimal possible height (or length if the chart is rotated) of a bar in pixels. Applies only to bar-like series.

Selector: min-bar-size
Type:

Number

Default Value: undefined

If the disparity between the smallest and largest values in the data source is considerable, small values are visualized by tiny bars that may be difficult to interact with. In this case, specify the minimal possible height (or length if the chart is rotated) for bars using the minBarSize property.

See Also

pane

Specifies which pane the series should belong to. Accepts the name of the pane.

Type:

String

Default Value: 'default'

If this property is not specified, the series will belong to the default pane.

See Also
  • panes - declares a collection of panes.

View Demo

selectionMode

Specifies series elements to be highlighted when a user selects a bar.

Selector: selection-mode
Type:

String

Default Value: 'onlyPoint'
Accepted Values: 'onlyPoint' | 'allSeriesPoints' | 'allArgumentPoints' | 'none'

NOTE
Though not provided out of the box, the selection capability can be implemented using the UI component API. Refer to the onPointClick property description for details.

When a user selects a bar, its series may react in one of the following ways depending on the value of the selectionMode property.

selectionMode Result
"onlyPoint"
"allSeriesPoints"
"allArgumentPoints"
"none"
See Also

selectionStyle

Configures the appearance adopted by the series when a user selects it.

Selector: DxSelectionStyle
Type:

Object

NOTE
Though not provided out of the box, the selection capability can be implemented using the UI component API. Refer to the onPointClick property description for details.

Declared in commonSeriesSettings, selectionStyle applies to all series in the chart. Declared in a series configuration object, selectionStyle applies to this particular series only. The series-specific selectionStyle overrides the common one.

showInLegend

Specifies whether to show the series in the legend or not.

Selector: show-in-legend
Type:

Boolean

Default Value: true

tagField

Specifies which data source field provides auxiliary data for series points.

Selector: tag-field
Type:

String

Default Value: 'tag'
Cannot be used in themes.

This property allows you to associate virtually any required data with a series point. This data will be stored in the tag field of the Point object.

Commonly, a chart contains several series, and many of them have the same tagField value. In this case, specify the tagField property in the commonSeriesSettings object. If a series must have a unique tagField value, specify the same property, but do so in the series object within the series array.

See Also
  • series.tag - associates data with an entire series.

valueErrorBar

Configures error bars.

Selector: DxValueErrorBar
Type:

Object

Error bars are used on charts to indicate an error or an uncertainty in a reported measurement. They give a general idea of how precise the measurement is.

DevExtreme HTML5 Charts ErrorBars

Error bars can be generated either from concrete or calculated values. To generate one error bar, two values, high and low, are needed. If the chart data source supplies concrete high and low values, assign the required data source fields to the highValueField and lowValueField properties. To hide individual error bars, set the corresponding low and high values in the data source to null.

Alternatively, error bar values can be calculated according to an algorithm. In this case, use the type property to choose a required algorithm, and use the value property to specify the value to be used in calculation.

NOTE
Error bars are available for axes of the numeric type only.

View Demo

valueField

Specifies which data source field provides values for series points.

Selector: value-field
Type:

String

Default Value: 'val'
Cannot be used in themes.

In the Cartesian coordinate system, each point is characterized by a pair of coordinates (X, Y). In a common case, X's are provided by the argumentField; Y's are provided by the valueField.

Certain series types require more than one value field, because their points are characterized by a larger number of coordinates. These series types are:

  • Range-like series types
    Range bar and range area require two value fields: rangeValue1Field and rangeValue2Field.
  • Financial series types
    Stock and candlestick require four value fields: openValueField, closeValueField, highValueField and lowValueField.

If you use a series template, specify the value field properties in the commonSeriesSettings object. Otherwise, do this in the series object within the series array.

visible

Specifies whether the series is visible or not.

Type:

Boolean

Default Value: true

NOTE
When the series is invisible, the marker of its legend item is faded.
See Also
  • Series.show() - shows the series at runtime.
  • Series.hide() - hides the series at runtime.