How to retrieve series color using tooltiprender event in Blazor Charts?

This article explains how to retrieve series color using TooltipRender event in Blazor Charts.

Retrieve Series Color Using TooltipRender Event

Blazor Charts provides an option to retrieve series color using TooltipRender event.

This can be achieved by utilizing the TooltipRender event to get the arguments of Series Fill to retrieve the series color for each series.

The below code example demonstrates how to retrieve series color using TooltipRender event.

Index.razor

@using Syncfusion.Blazor.Charts

<SfChart>
   <ChartPrimaryXAxis ValueType="Syncfusion.Blazor.Charts.ValueType.Category"></ChartPrimaryXAxis>
   <ChartEvents TooltipRender="TooltipEvent"></ChartEvents>
   <ChartSeriesCollection>
       <ChartSeries DataSource="@MedalDetails" Name="Series1" Fill="#F14FF5" XName="X" YName="YValue" Type="ChartSeriesType.StackingColumn" />
       <ChartSeries DataSource="@MedalDetails" Name="Series2" Fill="#f583f8" XName="X" YName="YValue2" Type="ChartSeriesType.StackingColumn" />
       <ChartSeries DataSource="@MedalDetails" Name="Series3" Fill="#a52a2a" XName="X" YName="YValue3" Type="ChartSeriesType.StackingColumn" />
       <ChartSeries DataSource="@MedalDetails" Name="Series4" Fill="#FFFF00" XName="X" YName="YValue4" Type="ChartSeriesType.StackingColumn" />
       <ChartSeries DataSource="@MedalDetails" Name="Series5" Fill="#008000" XName="X" YName="YValue5" Type="ChartSeriesType.StackingColumn" />
   </ChartSeriesCollection>
   <ChartTooltipSettings Enable="true"></ChartTooltipSettings>
</SfChart>

<div>
   <p>Series color is: @color</p>
</div>

@code {
   public string color { get; set; }

   public void TooltipEvent(TooltipRenderEventArgs args)
   {
       color = ((ChartSeries)args.Series).Fill;
       StateHasChanged();
   }

   public class ChartData
   {
       public string? X { get; set; }
       public double YValue { get; set; }
       public double YValue2 { get; set; }
       public double YValue3 { get; set; }
       public double YValue4 { get; set; }
       public double YValue5 { get; set; }
   }

   public List<ChartData> MedalDetails { get; set; } = new List<ChartData>
   {
       new ChartData { X = "USA", YValue = 50, YValue2 = 40, YValue4 = 48, YValue5 = 43 },
       new ChartData { X = "China", YValue = 40, YValue2 = 45, YValue3 = 55,YValue5 = 53 },
       new ChartData { X = "Japan", YValue = 70, YValue2 = 65, YValue3 = 68, YValue4 = 58,YValue5 = 62 },
       new ChartData { X = "Australia", YValue = 60, YValue2 = 55, YValue4 = 43,YValue5 = 45 },
       new ChartData { X = "France", YValue = 50, YValue2 = 42, YValue4 = 38,YValue5 = 41 },
       new ChartData { X = "Germany", YValue = 78, YValue2 = 75, YValue3 = 70, YValue4 = 67,YValue5 = 72 },
       new ChartData { X = "Italy", YValue = 75, YValue3 = 67, YValue4 = 61, YValue5 = 65 },
       new ChartData { X = "Sweden", YValue = 60, YValue2 = 55, YValue4 = 50,YValue5 = 54 },
       new ChartData { X = "Korea", YValue = 40, YValue2 = 42, YValue3 = 47, YValue4 = 44,YValue5 = 43 },
       new ChartData { X = "Hungary", YValue = 35, YValue3 = 42,YValue5 = 53 },
   };
} 

The following screenshot illustrates the output of the code snippet.

Live Sample for Retrieving Series Color Using the TooltipRender Event

Conclusion

I hope you enjoyed learning how to retrieve series color using TooltipRender event in Blazor Charts.

You can refer to our Blazor Chart feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our Blazor Chart example to understand how to create and manipulate data.

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