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Blazor RichTextEditor Component in WebAssembly App using Visual Studio

21 May 20264 minutes to read

This article provides a step-by-step instructions for building Blazor WebAssembly App with Blazor RichTextEditor component using Visual Studio.

Prerequisites

Create a Blazor WebAssembly App in Visual Studio

You can create a Blazor WebAssembly App using Visual Studio via Microsoft Templates or the Syncfusion® Blazor Extension.

Install Syncfusion® Blazor packages

Install the following NuGet packages in your project:

You can install these packages using different methods as shown below:

  1. In Visual Studio Navigate to:

    Tools → NuGet Package Manager → Manage NuGet Packages for Solution

  2. Search for the required packages.
  3. Select the package and click Install.

  1. In Visual Studio Navigate to:

    Tools → NuGet Package Manager → Package Manager Console

  2. Run the following commands:

Install-Package Syncfusion.Blazor.RichTextEditor -Version 33.2.3
Install-Package Syncfusion.Blazor.Themes -Version 33.2.3
  1. Open your project.
  2. Open the terminal:
    • In Visual Studio Code: use the integrated terminal (Ctrl + `)
    • Or use any system terminal for CLI
  3. Run the following commands:
dotnet add package Syncfusion.Blazor.RichTextEditor --version 33.2.3
dotnet add package Syncfusion.Blazor.Themes --version 33.2.3

NOTE

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

Register Syncfusion® Blazor Service

Open ~/_Imports.razor file and import the Syncfusion.Blazor and Syncfusion.Blazor.RichTextEditor namespace.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.RichTextEditor

Now, register the Syncfusion® Blazor Service in the ~/Program.cs file of your 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 stylesheet and script resources

The theme stylesheet and script can be accessed from NuGet through Static Web Assets. Reference the stylesheet and script in the <head> of the main page as follows:

  • For Blazor WebAssembly app, include it in the ~/index.html file.
<head>
    ....
    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
    <script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>
</head>

NOTE

Check out the Blazor Themes topic to discover various methods (Static Web Assets, CDN, and CRG) for referencing themes in your Blazor application. Also, check out the Adding Script Reference topic to learn different approaches for adding script references in your Blazor application.

Add Blazor RichTextEditor component

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

<SfRichTextEditor>
<p>Rich Text Editor allows to insert images from online source as well as local computer where you want to insert the image in your content.</p>
<p><b>Get started Quick Toolbar to click on the image</b></p>
<p>It is possible to add custom style on the selected image inside the Rich Text Editor through quick toolbar.</p>
</SfRichTextEditor>

To launch the application, press Ctrl+F5 in Visual Studio, run dotnet run from the CLI or integrated terminal in VS Code, or use the Run command in your preferred IDE to render the Syncfusion® Blazor RichTextEditor component in the default web browser.

Blazor RichTextEditor Component