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V24.1

DxPolarChartBarSeries<T, TArgument, TValue> Class

Defines a bar series.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public class DxPolarChartBarSeries<T, TArgument, TValue> :
    DxPolarChartBaseSeries<T, TArgument, TValue>

Type Parameters

Name Description
T

The data type.

TArgument

The series argument type.

TValue

The series value type.

Remarks

The bar series displays data as a collection of bars.

Bar width is specified

Run Demo: Polar and Radar - Discrete Data

Declare a Bar Series

  1. Use the Polar Chart’s Data property to specify a data source.
  2. Add a <DxPolarChartBarSeries> tag to the component’s markup.
  3. Assign data source fields that contain arguments and values for data points to ArgumentField and ValueField properties.
  4. Optional. Configure the series: customize appearance, add labels, choose selection and hover modes, etc.
<DxPolarChart Data=@DataSource>
    <DxPolarChartBarSeries ArgumentField="@((DiscretePoint i) => i.Arg)"
                           ValueField="@((DiscretePoint i) => i.Day)">
    </DxPolarChartBarSeries>
    <DxChartLegend Visible="false" />
</DxPolarChart>

Nested Component Structure

You can add the following child components to a bar series:

DxChartSeriesLabel
Defines a series label.
DxChartSeriesLegendItem
Defines an item that indicates a series in the legend.
DxChartSeriesPoint
Provides settings for points of the chart’s line series.

Note that the Polar Chart treats individual bars as points. If you specify the same property at both series and series point levels, the latter has a higher priority.

The following code snippet declares these objects in the markup:

@using System.Drawing

<DxPolarChart Data=@DataSource>
    <DxChartLegend Position="RelativePosition.Outside" />
    <DxPolarChartBarSeries ArgumentField="@((DiscretePoint i) => i.Arg)"
                           ValueField="@((DiscretePoint i) => i.Day)" 
                           Color="Color.Lavender">
        <DxChartSeriesLegendItem Text="Daily Temperature" />
        <DxChartSeriesLabel Visible="true" FormatPattern="{value:##.#}" />
        <DxChartSeriesPoint Color="Color.Blue" />
    </DxPolarChartBarSeries>
</DxPolarChart>

Nested components

Customize Appearance

The Polar Chart allows you to use the following options to customize a bar series:

BarPadding
Specifies the padding between bars in a bar group, as a percentage.
BarWidth
Specifies the width of an individual bar in the series, in pixels.
BreakOnEmptyPoints
Specifies whether the series should break on points with null values.
Color
Specifies the color of the series.
MinBarHeight
Specifies the minimum bar height, in pixels.

Custom series appearance

@using System.Drawing

<DxPolarChart Data=@DataSource>
    <DxPolarChartBarSeries ArgumentField="@((DiscretePoint i) => i.Arg)"
                           ValueField="@((DiscretePoint i) => i.Day)"
                           BarPadding="0.4"
                           Color="Color.Lavender">
    </DxPolarChartBarSeries>
</DxPolarChart>

User Interaction Options

Users can select and hover the mouse pointer over a series and its elements. The table below describes available user interaction options. Since the Polar Chart component treats individual bars as points, the SeriesSelectionMode property is not applicable to a bar series.

Description Component Level Series Level
Hover Over Series and Its Elements Not Applicable HoverMode
Point Selection PointSelectionMode SelectionMode

Inheritance

Object
ComponentBase
DxSettingsComponent<DevExpress.Blazor.Internal.IPolarChartSeriesModel>
DxComplexSettingsComponent<DxPolarChartBaseSeries<T, TArgument, TValue>, DevExpress.Blazor.Internal.IPolarChartSeriesModel>
DxPolarChartBaseSeries<T, TArgument, TValue>
DxPolarChartBarSeries<T, TArgument, TValue>
See Also