Getting Started with Blazor HeatMap Chart in Blazor WASM App

8 Jul 20265 minutes to read

This section briefly explains how to include Blazor HeatMap Chart component in a Blazor WebAssembly App using Visual Studio, Visual Studio Code, and the .NET CLI.

Create a new Blazor WebAssembly (Standalone) App

Create a Blazor WebAssembly App using Visual Studio via Microsoft Templates or the Blazor Extension.

Run the following command to create a new Blazor WebAssembly App.

Terminal

dotnet new blazorwasm -o BlazorApp
cd BlazorApp

Alternatively, create a Blazor WebAssembly App using Visual Studio Code via Microsoft Templates or the Blazor Extension, or the C# Dev Kit extension.

Run the following command to create a new Blazor WebAssembly App.

Command Prompt

dotnet new blazorwasm -o BlazorApp
cd BlazorApp

Install the required Blazor package

Install the Syncfusion.Blazor.HeatMap NuGet package. All Syncfusion Blazor packages are available on nuget.org. See the NuGet packages topic for details.

Go to Tools → NuGet Package Manager → Manage NuGet Packages for Solution.
Search the required NuGet package (Syncfusion.Blazor.HeatMap) and install it.

Alternatively, you can install the same package using the Package Manager Console with the following command.

Package Manager Console

Install-Package Syncfusion.Blazor.HeatMap -Version 34.1.29

Open the terminal and run the following command.

Terminal

dotnet add package Syncfusion.Blazor.HeatMap -v 34.1.29

Open the command prompt and run the following command.

Command Prompt

dotnet add package Syncfusion.Blazor.HeatMap -v 34.1.29

Add import namespaces

After the packages are installed, open the ~/_Imports.razor file and import the Syncfusion.Blazor and Syncfusion.Blazor.HeatMap namespaces.

~/_Imports.razor
@using Syncfusion.Blazor
@using Syncfusion.Blazor.HeatMap

Register the Blazor service

Open the Program.cs file in Blazor WebAssembly App and register the Blazor service.

Program.cs
using Syncfusion.Blazor;
....
builder.Services.AddSyncfusionBlazor();
....

Add Script resources

The script can be accessed from NuGet through Static Web Assets. Include the script references in the wwwroot/index.html file.

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

Add Blazor HeatMap Chart component

Open a Razor file located in the ~/Pages/*.razor (for example, Home.razor) and add the Blazor HeatMap Chart component inside the razor file.

Home.razor
<SfHeatMap DataSource="@HeatMapData">
    <HeatMapTitleSettings Text="Sales Revenue per Employee (in 1000 US$)"></HeatMapTitleSettings>
    <HeatMapCellSettings ShowLabel="true" TileType="CellType.Rect"></HeatMapCellSettings>
</SfHeatMap>

@code
{
    int[,] GetDefaultData()
    {
        int[,] dataSource = new int[,]
        {
            {52, 65, 67, 45, 37, 52},
            {68, 52, 63, 51, 30, 51},
            {7, 16, 47, 47, 88, 6},
            {66, 64, 46, 40, 47, 41},
            {14, 46, 97, 69, 69, 3},
            {54, 46, 61, 46, 40, 39}
        };
        return dataSource;
    }
    public object HeatMapData { get; set; }
    protected override void OnInitialized()
    {
        HeatMapData = GetDefaultData();
    }
}

Run the application

Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to launch the application. The Blazor HeatMap Chart component will render in your default web browser.