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V25.1
  • DxChartCrosshairLabel Class

    Defines a crosshair label.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    Declaration

    public class DxChartCrosshairLabel :
        DxComplexSettingsComponent<DxChartCrosshairLabel, CrosshairLabelModel>,
        IModelProvider<ChartFontModel>

    Remarks

    Use the DxChartCrosshairLabel component to configure crosshair labels in the DxChart component.

    DxChart - Crosshair Labels

    @rendermode InteractiveServer
    
    <DxChart Data="@DataSource"
             Width="100%"
             Height="500px">
        <DxChartTitle Text="DevAV Sales" />
        <DxChartArgumentAxis TickInterval="1">
            <DxChartAxisTitle Text="Year" />
            <DxChartAxisLabel Format="ChartElementFormat.Decimal()" />
        </DxChartArgumentAxis>
        <DxChartCrosshair Enabled="true"
                          Width="2"
                          DashStyle="ChartDashStyle.Dot"
                          Color="#5f368d"
                          Opacity="0.9">
            <DxChartCrosshairLabel Visible="true"
                                   BackgroundColor="#888">
                <DxChartFont Color="white" />
            </DxChartCrosshairLabel>
        </DxChartCrosshair>
        <DxChartCommonSeries NameField="@((SalesAmountData s) => s.ProductCategory)"
                             ArgumentField="@((SalesAmountData s) => s.Year)"
                             ValueField="@((SalesAmountData s) => s.SalesAmount)">
            <SeriesTemplate Context="settings">
                <DxChartSplineSeries Settings="@settings" />
            </SeriesTemplate>
        </DxChartCommonSeries>
        <DxChartLegend VerticalAlignment="VerticalEdge.Bottom"
                       Position="RelativePosition.Outside" />
        <DxChartTooltip Enabled="true">
            <div style="margin: 0.75rem">
                <div>
                    @($"{context.Point.SeriesName}:  ${context.Point.Value}K")
                </div>
            </div>
        </DxChartTooltip>
    </DxChart>
    
    @code {
        IEnumerable<SalesAmountData> DataSource = Enumerable.Empty<SalesAmountData>();
        protected override void OnInitialized() {
            DataSource = GenerateData();
        }
    }
    
    Show Nested Component Structure

    Follow the steps below to show and customize crosshair labels:

    1. Add a DxChartCrosshair object to the chart markup and set the DxChartCrosshair.Enabled property to true.
    2. Add a DxChartCrosshairLabel object to the DxChartCrosshair component markup to configure common label settings. Enable the DxChartCrosshairLabel.Visible property to display labels.
    3. Optional. Override common settings for horizontal or vertical crosshair lines.

    Refer to the DxChartCrosshair class description for more information and examples.

    Inheritance

    Object
    ComponentBase
    DxSettingsComponent<DevExpress.Blazor.ClientComponents.Internal.CrosshairLabelModel>
    DxComplexSettingsComponent<DxChartCrosshairLabel, DevExpress.Blazor.ClientComponents.Internal.CrosshairLabelModel>
    DxChartCrosshairLabel
    See Also