radzen-blazor/RadzenBlazorDemos/Pages/GroupedColumnChartConfig.razor

<RadzenStack class="rz-p-0 rz-p-md-6 rz-p-lg-12">
    <RadzenRow>
        <RadzenColumn Size="12">
            <RadzenChart Animate="true">
                <RadzenColumnSeries FillMode="FillMode.Gradient" Data="@apples" CategoryProperty="Region" ValueProperty="Production" Title="Apples">
                    <RadzenSeriesDataLabels Visible="true" />
                </RadzenColumnSeries>
                <RadzenColumnSeries FillMode="FillMode.Gradient" Data="@oranges" CategoryProperty="Region" ValueProperty="Production" Title="Oranges">
                    <RadzenSeriesDataLabels Visible="true" />
                </RadzenColumnSeries>
                <RadzenColumnSeries FillMode="FillMode.Gradient" Data="@bananas" CategoryProperty="Region" ValueProperty="Production" Title="Bananas">
                    <RadzenSeriesDataLabels Visible="true" />
                </RadzenColumnSeries>
                <RadzenColumnOptions Radius="3" />
                <RadzenValueAxis>
                    <RadzenGridLines Visible="true" />
                    <RadzenAxisTitle Text="Production (thousand tonnes)" />
                </RadzenValueAxis>
                <RadzenLegend Position="LegendPosition.Bottom" />
            </RadzenChart>
        </RadzenColumn>
    </RadzenRow>
</RadzenStack>

@code {
    class FruitData
    {
        public string Region { get; set; }
        public double Production { get; set; }
    }

    FruitData[] apples = new[]
    {
        new FruitData { Region = "North", Production = 52 },
        new FruitData { Region = "South", Production = 38 },
        new FruitData { Region = "East", Production = 44 },
        new FruitData { Region = "West", Production = 61 },
    };

    FruitData[] oranges = new[]
    {
        new FruitData { Region = "North", Production = 18 },
        new FruitData { Region = "South", Production = 67 },
        new FruitData { Region = "East", Production = 33 },
        new FruitData { Region = "West", Production = 42 },
    };

    FruitData[] bananas = new[]
    {
        new FruitData { Region = "North", Production = 9 },
        new FruitData { Region = "South", Production = 85 },
        new FruitData { Region = "East", Production = 56 },
        new FruitData { Region = "West", Production = 29 },
    };
}