ChartSeriesPointModel Class

Defines a Chart point's appearance settings.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v20.2.dll

Declaration

public class ChartSeriesPointModel :
    DxModel<ChartSeriesPointModel>

The following members accept/return ChartSeriesPointModel objects:

Remarks

Use instances of the ChartSeriesPointModel class in the CustomizeSeriesPoint event handler. These instances specify the customized point's color, image, size, symbol, and visibility state.

The example below demonstrates how to:

  • use the DxChartSeriesPoint component to define the common point appearance;
  • handle the CustomizeSeriesPoint event to change the color of points whose values are greater than 75 or less than 25.
<DxChart Data="@WeatherForecasts" CustomizeSeriesPoint="@PreparePointColor">
    <DxChartLineSeries AggregationMethod="@(i => (int)i.Average())"
                       Color="System.Drawing.Color.Gray"
                       ValueField="@((WeatherForecast i) => i.TemperatureF)"
                       ArgumentField="@(i => i.Date.Date)"
                       Name="Temperature, F">
        <DxChartSeriesPoint Symbol="ChartPointSymbol.Polygon" Color="System.Drawing.Color.Gray" Size="25" />
    </DxChartLineSeries>
    <DxChartLegend Position="RelativePosition.Outside" />
</DxChart>

@code {
    WeatherForecast[] WeatherForecasts;
    ...
    protected void PreparePointColor(ChartSeriesPointCustomizationSettings pointSettings) {
        double value = (double)pointSettings.Point.Value;
        if(value > 75)
            pointSettings.PointAppearance.Color = System.Drawing.Color.Red;
        else if(value < 25)
            pointSettings.PointAppearance.Color = System.Drawing.Color.Blue;
    }
}

Run Demo: Charts - Series Point Customization

Inheritance

See Also