Getting Started with Blazor DocumentEditor Component in Blazor Server

29 Jan 20244 minutes to read

This section briefly explains about how to include Blazor DocumentEditor component in your Blazor Server App using Visual Studio.


Create a new Blazor App in Visual Studio

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

Install Syncfusion Blazor WordProcessor and Themes NuGet in the App

To add Blazor DocumentEditor component in the app, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), search and install Syncfusion.Blazor.WordProcessor and Syncfusion.Blazor.Themes. Alternatively, you can utilize the following package manager command to achieve the same.

Install-Package Syncfusion.Blazor.WordProcessor -Version 26.1.35
Install-Package Syncfusion.Blazor.Themes -Version 26.1.35


Syncfusion Blazor components are available in 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.DocumentEditor namespace.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.DocumentEditor

Now, register the Syncfusion Blazor Service in the ~/Program.cs file of your Blazor Server App.

using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Web;
using Syncfusion.Blazor;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddServerSideBlazor().AddHubOptions(o => { o.MaximumReceiveMessageSize = 102400000; });

// Add Syncfusion Blazor service to the container.

var app = builder.Build();

Add stylesheet and script resources

Add the following stylesheet and script to the head section. 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 .NET 6 Blazor Server app, include it in ~/Pages/_Layout.cshtml file.

  • For .NET 7 Blazor Server app, include it in the ~/Pages/_Host.cshtml file.

    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
    <script src="_content/Syncfusion.Blazor.WordProcessor/scripts/syncfusion-blazor-documenteditor.min.js" type="text/javascript"></script>


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 DocumentEditor Component

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

<SfDocumentEditorContainer EnableToolbar=true></SfDocumentEditorContainer>

Note: By default, the SfDocumentEditorContainer component initializes a SfDocumentEditor instance internally. If you like to use the events of SfDocumentEditor component, then you can set UseDefaultEditor property as false and define your own SfDocumentEditor instance with event hooks in the application (Razor file).

  • Press Ctrl+F5 (Windows) or +F5 (macOS) to launch the application. This will render the Syncfusion Blazor DocumentEditor component in your default web browser.
Blazor DocumentEditor

Load existing document

To load an existing document during control initialization, use the following code example, which opens a Word document. Convert it to SFDT and load in the editor.

@using System.IO;
@using Syncfusion.Blazor.DocumentEditor;

<SfDocumentEditorContainer @ref="container" EnableToolbar=true>
    <DocumentEditorContainerEvents Created="OnCreated"></DocumentEditorContainerEvents>

@code {
    SfDocumentEditorContainer container;

    public void OnCreated(object args)
        string filePath = "wwwroot/data/GettingStarted.docx";
        using (FileStream fileStream = new FileStream(filePath, System.IO.FileMode.Open, System.IO.FileAccess.Read))
            WordDocument document = WordDocument.Load(fileStream, ImportFormatType.Docx);
            string json = JsonSerializer.Serialize(document);
            //To observe the memory go down, null out the reference of document variable.
            document = null;
            SfDocumentEditor editor = container.DocumentEditor;
            //To observe the memory go down, null out the reference of json variable.
            json = null;


As per the discussion thread #30064, null out the reference of streams and other instances when they are no longer required. Using this approach you’ll observe the memory go down and become stable.

Blazor DocumentEditor