Getting Started with Blazor Chart Component in Blazor WASM App

23 Dec 202511 minutes to read

This section briefly explains about how to include Blazor Charts component in a Blazor WebAssembly (WASM) App using Visual Studio, Visual Studio Code, and the .NET CLI.

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Prerequisites

System requirements for Blazor components

Create a new Blazor App in Visual Studio

Create a Blazor WebAssembly App using Visual Studio via Microsoft Templates or the Syncfusion^® Blazor Extension. For detailed instructions, refer to the Blazor WASM App Getting Started documentation.

Blazor WASM Create Project Template

Install Syncfusion^® Blazor Charts NuGet in the App

To add the Blazor Chart component in the app, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), then search and install Syncfusion.Blazor.Charts. Alternatively, run the following commands in the Package Manager Console to achieve the same.

Package Manager
Install-Package Syncfusion.Blazor.Charts -Version 32.1.19

NOTE

Syncfusion^® Blazor components are available in nuget.org. Refer to the NuGet packages topic for the available NuGet packages list with component details.

Prerequisites

System requirements for Blazor components

Create a new Blazor App in Visual Studio Code

Create a Blazor WebAssembly App using Visual Studio Code via Microsoft Templates or the Syncfusion^® Blazor Extension. For detailed instructions, refer to the Blazor WASM App Getting Started documentation.

Alternatively, create a WebAssembly application by using the following command in the integrated terminal(Ctrl+`).

Blazor WASM App
dotnet new blazorwasm -o BlazorApp
cd BlazorApp

Install Syncfusion^® Blazor Charts and Themes NuGet in the App

Press Ctrl+` to open the integrated terminal in Visual Studio Code.
Ensure in the project root directory where the .csproj file is located.
Run the following command to install a Syncfusion.Blazor.Charts NuGet package and ensure all dependencies are installed.

Package Manager
dotnet add package Syncfusion.Blazor.Charts -v 32.1.19
dotnet restore

NOTE

Syncfusion^® Blazor components are available in nuget.org. Refer to the NuGet packages topic for the available NuGet packages list with component details.

Prerequisites

Install the latest version of .NET SDK. If the .NET SDK is already installed, determine the installed version by running the following command in a command prompt (Windows), terminal (macOS), or command shell (Linux).

.NET CLI
dotnet --version

Create a Blazor WebAssembly App using .NET CLI

Run the following command to create a new Blazor WebAssembly App in a command prompt (Windows) or terminal (macOS) or command shell (Linux). For detailed instructions, refer to this Blazor WASM App Getting Started documentation.

.NET CLI
dotnet new blazorwasm -o BlazorApp
cd BlazorApp

Install Syncfusion^® Blazor Chart NuGet in the App

Here’s an example of how to add Blazor Chart component in the application using the following command in the command prompt (Windows) or terminal (Linux and macOS) to install a Syncfusion.Blazor.Charts NuGet package. See Install and manage packages using the dotnet CLI topics for more details.

.NET CLI
dotnet add package Syncfusion.Blazor.Charts -Version 32.1.19
dotnet restore

NOTE

Syncfusion^® Blazor components are available in nuget.org. Refer to the NuGet packages topic for the available NuGet packages list with component details.

Add Import Namespaces

Open the ~/_Imports.razor file and import the Syncfusion.Blazor and Syncfusion.Blazor.Charts namespaces.

~/_Imports.razor

@using Syncfusion.Blazor
@using Syncfusion.Blazor.Charts

Register Syncfusion^® Blazor Service

Blazor WebAssembly App
using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Syncfusion.Blazor;

var builder = WebAssemblyHostBuilder.CreateDefault(args);
builder.RootComponents.Add<App>("#app");
builder.RootComponents.Add<HeadOutlet>("head::after");

builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });

builder.Services.AddSyncfusionBlazor();
await builder.Build().RunAsync();
....

Add script resources

The script can be accessed from NuGet through Static Web Assets. Include the script reference within the <head> section of the ~/index.html file.

<head>
    ....
    <script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>

    //Blazor Chart Component script reference.
    <!-- <script src="_content/Syncfusion.Blazor.Charts/scripts/sf-chart.min.js" type="text/javascript"></script> -->
</head>

NOTE

Check out the Adding Script Reference topic to learn different approaches for adding script references in the Blazor application.

Add Blazor Chart Component

Add the Syncfusion^® Blazor Chart component in the ~/Pages/Index.razor file.

RAZOR

<SfChart>

</SfChart>

Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to launch the application. This will render the Syncfusion^® Blazor Chart component in the default web browser.

Populate Blazor chart with data

To bind data for the chart component, you can assign a IEnumerable object to the DataSource property. It can also be provided as an instance of the DataManager.

RAZOR

public class SalesInfo
{
    public string Month { get; set; }
    public double SalesValue { get; set; }
}

public List<SalesInfo> Sales = new List<SalesInfo>
{
    new SalesInfo { Month = "Jan", SalesValue = 35 },
    new SalesInfo { Month = "Feb", SalesValue = 28 },
    new SalesInfo { Month = "Mar", SalesValue = 34 },
    new SalesInfo { Month = "Apr", SalesValue = 32 },
    new SalesInfo { Month = "May", SalesValue = 40 },
    new SalesInfo { Month = "Jun", SalesValue = 32 },
    new SalesInfo { Month = "Jul", SalesValue = 35 }
};

Now, map the data fields Month and Sales to the series XName and YName properties, then set the data to the DataSource property, and the chart type to Column because we will be viewing the data in a column chart.

RAZOR
<SfChart>
    <ChartPrimaryXAxis ValueType="Syncfusion.Blazor.Charts.ValueType.Category"></ChartPrimaryXAxis>
    <ChartSeriesCollection>
        <ChartSeries DataSource="@Sales" XName="Month" YName="SalesValue" Type="ChartSeriesType.Column">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

@code {
    public class SalesInfo
    {
        public string Month { get; set;}
        public double SalesValue { get; set;}
    }

    public List<SalesInfo> Sales = new List<SalesInfo>
    {
        new SalesInfo { Month = "Jan", SalesValue = 35 },
        new SalesInfo { Month = "Feb", SalesValue = 28 },
        new SalesInfo { Month = "Mar", SalesValue = 34 },
        new SalesInfo { Month = "Apr", SalesValue = 32 },
        new SalesInfo { Month = "May", SalesValue = 40 },
        new SalesInfo { Month = "Jun", SalesValue = 32 },
        new SalesInfo { Month = "Jul", SalesValue = 35 }
    };
}

Add titles

Using the Title property, you can add a title to the chart and the axes to provide the user with quick information about the data plotted in the chart.

RAZOR
<SfChart Title="Sales Analysis">
    <ChartPrimaryXAxis Title="Month" ValueType="Syncfusion.Blazor.Charts.ValueType.Category"></ChartPrimaryXAxis>
    <ChartPrimaryYAxis Title="Sales in Dollar"></ChartPrimaryYAxis>
    <ChartSeriesCollection>
        <ChartSeries DataSource="@Sales" XName="Month" YName="SalesValue" Type="ChartSeriesType.Column">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

Add data label

You can add data labels to improve the readability of the chart. This can be achieved by setting the Visible property to true in the ChartDataLabel.

RAZOR
<SfChart Title="Sales Analysis">
    <ChartPrimaryXAxis Title="Month" ValueType="Syncfusion.Blazor.Charts.ValueType.Category"></ChartPrimaryXAxis>
    <ChartPrimaryYAxis Title="Sales in Dollar"></ChartPrimaryYAxis>
    <ChartSeriesCollection>
        <ChartSeries DataSource="@Sales" XName="Month" YName="SalesValue" Type="ChartSeriesType.Column">
            <ChartMarker>
                <ChartDataLabel Visible="true"></ChartDataLabel>
            </ChartMarker>
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

When space constraints prevent you from displaying information using data labels, the tooltip comes in handy. The tooltip can be enabled by setting the Enable property in ChartTooltipSettings to true.

RAZOR
<SfChart Title="Sales Analysis">
    <ChartPrimaryXAxis Title="Month" ValueType="Syncfusion.Blazor.Charts.ValueType.Category"></ChartPrimaryXAxis>
    <ChartPrimaryYAxis Title="Sales in Dollar"></ChartPrimaryYAxis>
    <ChartTooltipSettings Enable="true"></ChartTooltipSettings>
    <ChartSeriesCollection>
        <ChartSeries DataSource="@Sales" XName="Month" YName="SalesValue" Type="ChartSeriesType.Column">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

Enable legend

You can use legend for the chart by setting the Visible property to true in ChartLegendSettings. The legend name can be changed by using the Name property in the series.

RAZOR
<SfChart Title="Sales Analysis">
    <ChartPrimaryXAxis Title="Month" ValueType="Syncfusion.Blazor.Charts.ValueType.Category"></ChartPrimaryXAxis>
    <ChartPrimaryYAxis Title="Sales in Dollar"></ChartPrimaryYAxis>
    <ChartLegendSettings Visible="true"></ChartLegendSettings>
    <ChartSeriesCollection>
        <ChartSeries DataSource="@Sales" Name="Sales" XName="Month" YName="SalesValue" Type="ChartSeriesType.Column">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

NOTE

View Sample in GitHub

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Getting Started with Blazor Chart Component in Blazor WASM App

Prerequisites

Create a new Blazor App in Visual Studio

Install Syncfusion^® Blazor Charts NuGet in the App

Prerequisites

Create a new Blazor App in Visual Studio Code

Install Syncfusion^® Blazor Charts and Themes NuGet in the App

Prerequisites

Create a Blazor WebAssembly App using .NET CLI

Install Syncfusion^® Blazor Chart NuGet in the App

Add Import Namespaces

Register Syncfusion^® Blazor Service

Add script resources

Add Blazor Chart Component

Populate Blazor chart with data

Add titles

Add data label

Enable Tooltip

Enable legend

See also

Getting Started with Blazor Chart Component in Blazor WASM App

Prerequisites

Create a new Blazor App in Visual Studio

Install Syncfusion® Blazor Charts NuGet in the App

Prerequisites

Create a new Blazor App in Visual Studio Code

Install Syncfusion® Blazor Charts and Themes NuGet in the App

Prerequisites

Create a Blazor WebAssembly App using .NET CLI

Install Syncfusion® Blazor Chart NuGet in the App

Add Import Namespaces

Register Syncfusion® Blazor Service

Add script resources

Add Blazor Chart Component

Populate Blazor chart with data

Add titles

Add data label

Enable Tooltip

Enable legend

See also

Install Syncfusion^® Blazor Charts NuGet in the App

Install Syncfusion^® Blazor Charts and Themes NuGet in the App

Install Syncfusion^® Blazor Chart NuGet in the App

Register Syncfusion^® Blazor Service