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Getting started with Blazor Bullet Chart component

28 Jul 2021 / 3 minutes to read

This section briefly explains how to include a Bullet Chart component in the Blazor server-side application. Refer to Getting Started with Syncfusion Blazor for server-side in Visual Studio 2019 page for introduction and configuring common specifications.

Importing Syncfusion Blazor Bullet Chart component in the application

  1. Install Syncfusion.Blazor NuGet package to the application by using the NuGet Package Manager.
  2. Add the client-side resources through CDN or from NuGet package in the HEAD element of the ~/Pages/_Host.cshtml page.
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<head>
<link href="_content/Syncfusion.Blazor.Themes/bootstrap4.css" rel="stylesheet" />
<!---CDN--->
@*<link href="https://cdn.syncfusion.com/blazor/19.2.49/styles/bootstrap4.css" rel="stylesheet" />*@
</head>

For Internet Explorer 11, kindly refer to the polyfills. Refer to the documentation for more information.

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<head>
<link href="https://cdn.syncfusion.com/blazor/19.2.49/styles/bootstrap4.css" rel="stylesheet" />
<script src="https://github.com/Daddoon/Blazor.Polyfill/releases/download/3.0.1/blazor.polyfill.min.js"></script>
</head>

Adding component package to the application

Open the ~/_Imports.razor file and include the Syncfusion.Blazor.Charts namespace.

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@using Syncfusion.Blazor.Charts

Adding SyncfusionBlazor service in Startup.cs

Open the Startup.cs file and add services required by Syncfusion components using services.AddSyncfusionBlazor() method. Add this method in the ConfigureServices function as follows.

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using Syncfusion.Blazor;

namespace BlazorApplication
{
public class Startup
{
    ....
    ....
    public void ConfigureServices(IServiceCollection services)
    {
        ....
        ....
        services.AddSyncfusionBlazor();
    }
}
}

To enable the custom client-side source loading from CRG or CDN, please refer to the section about custom resources in Blazor application.

Adding Bullet Chart component

To initialize the Bullet Chart component, add the below code to the Index.razor view page under ~/Pages folder. In a new application, if Index.razor page has any default content template, then those content can be completely removed, and following code can be added.

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@page "/"

<SfBulletChart DataSource="@BulletChartData" ValueField="FieldValue" TargetField="TargetValue" Minimum="0" Maximum="300" Interval="50">
</SfBulletChart>

@code{
public class ChartData
{
    public double FieldValue { get; set; }
    public double TargetValue { get; set; }
}
public List<ChartData> BulletChartData = new List<ChartData>
{
    new ChartData { FieldValue = 270, TargetValue = 250 }
};
}

On successful compilation of the application, the Syncfusion Blazor Bullet Chart component will render in the web browser as follows.

Bullet Chart

Adding Title

Add a title by using the Title property in the Bullet Chart, to provide quick information to the user about the data plotted in the component.

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@page "/"

<SfBulletChart DataSource="@BulletChartData" ValueField="FieldValue" TargetField="TargetValue" Minimum="0" Maximum="300" Interval="50" Title="Revenue">
</SfBulletChart>

@code{
public class ChartData
{
    public double FieldValue { get; set; }
    public double TargetValue { get; set; }
}
public List<ChartData> BulletChartData = new List<ChartData>
{
    new ChartData { FieldValue = 270, TargetValue = 250 }
};
}

Bullet Chart

Adding Ranges

Add ranges by using the BulletChartRangeCollection to measure the qualitative state by observing the distance between each range.

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@page "/"

<SfBulletChart DataSource="@BulletChartData" ValueField="FieldValue" TargetField="TargetValue" Minimum="0" Maximum="300" Interval="50" Title="Revenue">
<BulletChartRangeCollection>
    <BulletChartRange End=150> </BulletChartRange>
    <BulletChartRange End=250></BulletChartRange>
    <BulletChartRange End=300></BulletChartRange>
</BulletChartRangeCollection>
</SfBulletChart>

@code{
public class ChartData
{
    public double FieldValue { get; set; }
    public double TargetValue { get; set; }
}
public List<ChartData> BulletChartData = new List<ChartData>
{
    new ChartData { FieldValue = 270, TargetValue = 250 }
};
}

Bullet Chart

Adding Tooltip

Use the tooltip to show the measured values by setting the Enable property to true in the BulletChartTooltip.

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@page "/"

<SfBulletChart DataSource="@BulletChartData" ValueField="FieldValue" TargetField="TargetValue" Minimum="0" Maximum="300" Interval="50" Title="Revenue">
<BulletChartTooltip TValue="ChartData" Enable="true"></BulletChartTooltip>
<BulletChartRangeCollection>
    <BulletChartRange End=150> </BulletChartRange>
    <BulletChartRange End=250></BulletChartRange>
    <BulletChartRange End=300></BulletChartRange>
</BulletChartRangeCollection>
</SfBulletChart>

@code{
public class ChartData
{
    public double FieldValue { get; set; }
    public double TargetValue { get; set; }
}
public List<ChartData> BulletChartData = new List<ChartData>
{
    new ChartData { FieldValue = 270, TargetValue = 250 }
};
}

Bullet Chart