DxPolarChartBarSeries<T, TArgument, TValue> Class

Defines a bar series.

Assembly : DevExpress.Blazor.v25.2.dll

Declaration

csharp

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.

Run Demo: Polar and Radar - Discrete Data

Declare a Bar Series

Use the Polar Chart’s Data property to specify a data source.
Add a <DxPolarChartBarSeries> tag to the component’s markup.
Assign data source fields that contain arguments and values for data points to ArgumentField and ValueField properties.
Optional. Configure the series: customize appearance, add labels, choose selection and hover modes, etc.

Razor
DiscretePoint.cs
ChartDiscreteDataProvider.cs

razor

<DxPolarChart Data=@DataSource>
    <DxPolarChartBarSeries ArgumentField="@((DiscretePoint i) => i.Arg)"
                           ValueField="@((DiscretePoint i) => i.Day)">
    </DxPolarChartBarSeries>
    <DxChartLegend Visible="false" />
</DxPolarChart>

csharp

namespace BlazorDemo.Data {
    public class DiscretePoint {
        public string Arg { get; set; }
        public int Day { get; set; }
        public int Night { get; set; }

        public DiscretePoint(string arg, int day, int night) {
            Arg = arg;
            Day = day;
            Night = night;
        }
    }
}

csharp

using System.Collections.Generic;
using BlazorDemo.Data;

// ...
    public class ChartDiscreteDataProvider : IChartDiscreteDataProvider {
        public List<DiscretePoint> GenerateData() {
            return new List<DiscretePoint>() {
                new DiscretePoint("January", 6, 2),
                new DiscretePoint("February", 7, 2),
                new DiscretePoint("March", 10, 3),
                new DiscretePoint("April", 14, 5),
                new DiscretePoint("May", 18, 8),
                new DiscretePoint("June", 21, 11),
                new DiscretePoint("July", 22, 13),
                new DiscretePoint("August", 22, 13),
                new DiscretePoint("September", 19, 11),
                new DiscretePoint("October", 15, 8),
                new DiscretePoint("November", 10, 5),
                new DiscretePoint("December", 7, 3),
            };
        }
    }

Nested Component Structure

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

DxChartSeriesLabelDefines a series label.DxChartSeriesLegendItemDefines an item that indicates a series in the legend.DxChartSeriesPointContains settings for points of the chart’s line- and area-based 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:

razor

@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>

Customize Appearance

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

BarPaddingSpecifies the padding between bars in a bar group, as a percentage.BarWidthSpecifies the width of an individual bar in the series, in pixels.BreakOnEmptyPointsSpecifies whether the series should break on points with null values.ColorSpecifies the color of the series.MinBarHeightSpecifies the minimum bar height, in pixels.

razor

@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

Implements

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> DxPolarChartStackedBarSeries<T, TArgument, TValue>