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V25.1
  • IChartSeriesLabel.BackgroundColor Property

    Specifies the label background color.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    Declaration

    Color BackgroundColor { get; set; }

    Property Value

    Type Description
    Color

    The background color.

    Remarks

    IChartSeriesLabel properties allow you to configure point label settings. To access these settings, use the PointLabel property in a CustomizeSeriesPoint event handler.

    Example

    The following code snippet customizes the background color of visible point labels:

    Chart Series Labels - Background Color

    <DxChart Data="@WeatherForecasts"
             CustomizeSeriesPoint="@PreparePointLabel">
        <DxChartLineSeries SummaryMethod="@(i => (int)i.Average())"
                           ValueField="@((WeatherForecast i) => i.TemperatureF)"
                           ArgumentField="@(i => i.Date.Date)"
                           Name="Temperature, F">
            <DxChartSeriesLabel Position="RelativePosition.Outside">
                <DxChartSeriesLabelConnector Visible="true" Width="3" />
            </DxChartSeriesLabel>
        </DxChartLineSeries>
        <DxChartLegend Position="RelativePosition.Outside" />
    </DxChart>
    
    @code {
        WeatherForecast[] WeatherForecasts;
        // ...
        protected void PreparePointLabel(ChartSeriesPointCustomizationSettings pointSettings) {
            double value = (double)pointSettings.Point.Value;
            if(value > 25 && value < 75) {
                pointSettings.PointLabel.Visible = true;
                pointSettings.PointLabel.BackgroundColor = System.Drawing.Color.Red;
            }
        }
    }
    

    Run Demo: Charts - Series Label Customization

    See Also