How to change the legend icon in Blazor Chart?

This article explains how to change the legend icon in Blazor Chart Component.

Customizing legend icon in Blazor Chart

Blazor Chart supports the customization of the legend icon shape through the use of the LegendShape property in the Series. By default, the icon shape corresponds to the SeriesType.

The following code snippet illustrates how to change the legend icon.

Index.razor

@using Syncfusion.Blazor.Charts

<SfChart Title="Olympic Medals">

    <ChartPrimaryXAxis ValueType="Syncfusion.Blazor.Charts.ValueType.Category" />

    <ChartSeriesCollection>
        <ChartSeries DataSource="@MedalDetails" Name="Gold" XName="Country" YName="Gold" Type="ChartSeriesType.Column" LegendShape="LegendShape.Circle" />
        <ChartSeries DataSource="@MedalDetails" Name="Silver" XName="Country" YName="Silver" Type="ChartSeriesType.Column" LegendShape="LegendShape.SeriesType" />
        <ChartSeries DataSource="@MedalDetails" Name="Bronze" XName="Country" YName="Bronze" Type="ChartSeriesType.Column" LegendShape="LegendShape.Diamond" />
    </ChartSeriesCollection>

    <ChartLegendSettings Visible="true" />

</SfChart>

@code {

    public class ChartData
    {
        public string Country { get; set; }
        public double Gold { get; set; }
        public double Silver { get; set; }
        public double Bronze { get; set; }
    }

    public List<ChartData> MedalDetails = new List<ChartData>
    {
        new ChartData{ Country= "USA", Gold=50, Silver=70, Bronze=45 },
        new ChartData{ Country="China", Gold=40, Silver= 60, Bronze=55 },
        new ChartData{ Country= "Japan", Gold=70, Silver= 60, Bronze=50 },
        new ChartData{ Country= "Australia", Gold=60, Silver= 56, Bronze=40 },
        new ChartData{ Country= "France", Gold=50, Silver= 45, Bronze=35 },
        new ChartData{ Country= "Germany", Gold=40, Silver=30, Bronze=22 },
        new ChartData{ Country= "Italy", Gold=40, Silver=35, Bronze=37 },
        new ChartData{ Country= "Sweden", Gold=30, Silver=25, Bronze=27 }
    };
}

The following screenshot illustrates the output of the above code snippet.

Output:

View the sample in GitHub

Conclusion

I hope you enjoyed learning how to change legend icon shape in Blazor Chart Component.

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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