DxChartTooltip Class

Contains settings for tooltips.

Assembly: DevExpress.Blazor.v24.2.dll

Declaration

public class DxChartTooltip :
    DxSettingsComponent<ChartTooltipModel>

Remarks

Use DxChartTooltip objects to customize tooltip settings for the following components:

DxChart<T>: A control that visualizes bound data as graphs: bar, area, line, and others.
DxPieChart<T>: A control that visualizes data as Pie and Donut charts.
DxPolarChart<T>: A control that visualizes bound data as graphs in polar coordinates.

A DxChartTooltip component uses the Blazor standard ChildContent property to specify templates for tooltips displayed when the mouse hovers over a chart series.

Chart Tooltip Position

The Tooltip class contains the following properties:

Enabled - Specifies whether tooltips are enabled. Set this property to true to display tooltips.
Position - Specifies the tooltip position.

<DxChart Data="@SalesData"
         CssClass="mw-1100">
    <DxChartTitle Text="Sales amount" />
    <DxChartTooltip Enabled="true" Position="RelativePosition.Outside">
       <div style="margin: 0.75rem">
            <div class="font-weight-bold">@context.Point.SeriesName</div>
            <div>City: @context.Point.Argument</div>
            <div>Amount: @context.Point.Value</div>
        </div>
    </DxChartTooltip>
    <DxChartBarSeries  Name="2017" 
                       Filter="@((SaleInfo s) => s.Date.Year == 2017)" 
                       SummaryMethod="Enumerable.Sum" 
                       ArgumentField="@(s => s.City)"
                       ValueField="@(s => s.Amount)" />
    <DxChartBarSeries  Name="2018" 
                       Filter="@((SaleInfo s) => s.Date.Year == 2018)" 
                       SummaryMethod="Enumerable.Sum" 
                       ArgumentField="@(s => s.City)"
                       ValueField="@(s => s.Amount)" />
    <DxChartLineSeries Name="2019" 
                       Filter="@((SaleInfo s) => s.Date.Year == 2019)" 
                       SummaryMethod="Enumerable.Sum" 
                       ArgumentField="@(s => s.City)"
                       ValueField="@(s => s.Amount)" />
</DxChart>

Run Demo: Charts - Tooltip Customization