Getting Started with Blazor DocumentEditor Component in Blazor Server

10 Feb 20237 minutes to read

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

Prerequisites

Create a new Blazor App in Visual Studio

You can create Blazor Server App using Visual Studio in one of the following ways,

Install Syncfusion Blazor WordProcessor NuGet in the App

Syncfusion Blazor components are available in nuget.org. To use Syncfusion Blazor components in the application, add reference to the corresponding NuGet. Refer to NuGet packages topic for available NuGet packages list with component details and Benefits of using individual NuGet packages.

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 for Syncfusion.Blazor.WordProcessor and then install it.

Register Syncfusion Blazor Service

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

@using Syncfusion.Blazor

Now, register the Syncfusion Blazor Service in the Blazor Server App. Here, Syncfusion Blazor Service is registered by setting IgnoreScriptIsolation property as true to load the scripts externally in the next steps.

NOTE

From 2022 Vol-1 (20.1) version, the default value of IgnoreScriptIsolation is changed to true. It is not necessary to set the IgnoreScriptIsolation property to refer scripts externally, since the default value has already been changed to true, and this property is obsolete.

  • For .NET 6 and .NET 7 app, open the ~/Program.cs file and register the Syncfusion Blazor Service.

  • For .NET 5 and .NET 3.X app, open the ~/Startup.cs file and register the Syncfusion Blazor Service.

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

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddRazorPages();
builder.Services.AddServerSideBlazor();
builder.Services.AddSyncfusionBlazor();

var app = builder.Build();
....
using Syncfusion.Blazor;

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

Add Style Sheet

Checkout the Blazor Themes topic to learn different ways (Static Web Assets, CDN and CRG) to refer themes in Blazor application, and to have the expected appearance for Syncfusion Blazor components. Here, the theme is referred using Static Web Assets.

To add theme to the app, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), search for Syncfusion.Blazor.Themes and then install it. Then, the theme style sheet from NuGet can be referred as follows,

  • For .NET 6 app, add the Syncfusion bootstrap5 theme in the <head> of the ~/Pages/_Layout.cshtml file.

  • For .NET 3.X, .NET 5 and .NET 7 app, add the Syncfusion bootstrap5 theme in the <head> of the ~/Pages/_Host.cshtml file.

<head>
    ...
    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
</head>
<head>
    ...
    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
</head>

Add Script Reference

Checkout Adding Script Reference topic to learn different ways to add script reference in Blazor Application. In this getting started walk-through, the required scripts are referred using Static Web Assets externally inside the <head> as follows,

  • For .NET 6 app, Refer script in the <head> of the ~/Pages/_Layout.cshtml file.

  • For .NET 3.X, .NET 5 and .NET 7 app, Refer script in the <head> of the ~/Pages/_Host.cshtml file.

<head>
    ....
    <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>
</head>
<head>
    ....
    <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>
</head>

In the above example code, we have referred the script which is specific to Document Editor component. If you want to use Document Editor along the other Syncfusion Blazor component like Grid, RTE etc. Refer below topic,

NOTE

Syncfusion recommends to reference scripts using Static Web Assets, CDN and CRG by disabling JavaScript isolation for better loading performance of the Blazor application.

Add Blazor DocumentEditor Component

  • Open ~/_Imports.razor file or any other page under the ~/Pages folder where the component is to be added and import the Syncfusion.Blazor.DocumentEditor namespace.
@using Syncfusion.Blazor
@using Syncfusion.Blazor.DocumentEditor
  • Now, add the Syncfusion DocumentEditor component in razor file. Here, the DocumentEditor component is added in the ~/Pages/Index.razor file under the ~/Pages folder.
<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 run the application. Then, the Syncfusion Blazor DocumentEditor component will be rendered in the 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>
</SfDocumentEditorContainer>

@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);
            document.Dispose();
            //To observe the memory go down, null out the reference of document variable.
            document = null;
            SfDocumentEditor editor = container.DocumentEditor;
            editor.OpenAsync(json);
            //To observe the memory go down, null out the reference of json variable.
            json = null;
        }
    }
}

NOTE

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