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Integration with Svelte


You should be familiar with the basic concepts and patterns of Svelte to use this documentation. If you are not, please refer to the Svelte documentation for a getting-started tutorial.

DHTMLX Spreadsheet is compatible with Svelte. We have prepared code examples of how to use DHTMLX Spreadsheet with Svelte. To check online samples, please refer to the corresponding Example on Replit.

You can also check the demo on GitHub.

Creating a project


Before you start to create a new project, install Vite (optional) and Node.js.

There are several ways of creating a project:


  • you can also use Svelte with Vite (but without SvelteKit):
npm create vite@latest

Check the details in the related article.

Installation of dependencies

Independent of the chosen way, next you should go to the app directory. Let's call our project spreadsheet-svelte and run:

cd spreadsheet-svelte

Then you need to install dependencies and run the app. For this, you need to make use of a package manager:

  • if you use yarn, you need to call the following commands:
yarn install
yarn dev
  • if you use npm, you need to call the following commands:
npm install
npm run dev

After the above steps are complete, the app should run on http://localhost:5173.

Svelte app running

Creating Spreadsheet

Now we should get the DHTMLX Spreadsheet code. First of all, we need to stop the app by pressing Ctrl+C in the command line. Then we can proceed with installing the Spreadsheet package.

Step 1. Package installation

There are two options available: you can install the Pro package from a local folder or install the trial version using npm or yarn.

Installing the package from a local folder

The instructions are the following:

  1. Copy the Spreadsheet package into some local directory inside the project
  2. In the project directory run the command below replacing spreadsheet-local-package-path with the actual path:
npm install ./spreadsheet-local-package-path
yarn add "./spreadsheet-local-package-path"

For example:

npm install ./spreadsheet_5.1.0_enterprise
// or
yarn add "./spreadsheet_5.1.0_enterprise"

Installing the trial version via a package manager

You can install the trial version of Spreadsheet using npm or yarn commands:

// npm
npm config set @dhx:registry
npm i @dhx/trial-spreadsheet

// yarn
yarn config set @dhx:registry
yarn add @dhx/trial-spreadsheet

To get Spreadsheet under the proprietary license, refer to the Support Center!

Step 2. Component creation

Now we should create a Svelte component, to add a Spreadsheet into the application. Let's create a new file in the src/ directory and name it Spreadsheet.svelte.

Importing source files

Open the file and import Spreadsheet source files. Note that:

import { Spreadsheet } from 'dhx-spreadsheet-package';
import 'dhx-spreadsheet-package/codebase/spreadsheet.css';

Note that depending on the used package, the source files can be minified. In this case make sure that you are importing the CSS file as spreadsheet.min.css.


In case you use npm with a local Spreadsheet package, the way of importing Spreadsheet source files is different. Check the details below

import { Spreadsheet } from '@dhx/trial-spreadsheet';
import '@dhx/trial-spreadsheet/codebase/spreadsheet.min.css';

In this tutorial we will use the trial version of Spreadsheet.

Setting the container and adding Spreadsheet

To display Spreadsheet on the page, we need to set the container to render the component inside. Check the code below:

import { Spreadsheet } from "@dhx/trial-spreadsheet";
import "@dhx/trial-spreadsheet/codebase/spreadsheet.min.css"

let container;

<div bind:this={container} class="container"></div>

.container {
width: 100%;
height: 400px;

Then we need to render our Spreadsheet in the container. To do that, use the onMount() method of Svelte. Inside the method you can also specify the destructor() method to remove the Spreadsheet instance, when it is no longer needed:

import { Spreadsheet } from "@dhx/trial-spreadsheet";
import "@dhx/trial-spreadsheet/codebase/spreadsheet.min.css";
import { onMount } from "svelte";

let spreadsheet;
let container;

onMount(() => {
spreadsheet = new Spreadsheet(container,{});
return () => spreadsheet.destructor();


<div bind:this={container} class="container"></div>

In case you use npm with a local Spreadsheet package, the way of Spreadsheet initialization differs a little bit. Check the details below

Using npm with Spreadsheet package

If you use npm with a Spreadsheet package, the import of the source files and the initialization of Spreadsheet will differ from the common way:

  • include the Spreadsheet source files in the index.html file as shown in the example below. Replace spreadsheet_package with the name of your local folder that contains Spreadsheet source files:
<script src="./spreadsheet_package/codebase/spreadsheet.js"></script>
<link rel="stylesheet" href="./spreadsheet_package/codebase/spreadsheet.css">
  • use the dhx prefix to initialize Spreadsheet, check the example below:
onMount(() => {
spreadsheet = new dhx.Spreadsheet(container,{});

Loading data

To add data into the Spreadsheet, we need to provide a data set. Let's create the data.js file in the src/ directory and add some data into it:

export function getData() {
return {
styles: {
bold: {
"font-weight": "bold",
right: {
"justify-content": "flex-end",
"text-align": "right",
data: [
{ cell: "a1", value: "Country", css:"bold" },
{ cell: "b1", value: "Product", css:"bold" },
{ cell: "c1", value: "Price", css:"right bold" },
{ cell: "d1", value: "Amount", css:"right bold" },
{ cell: "e1", value: "Total Price", css:"right bold" },

{ cell: "a2", value: "Ecuador" },
{ cell: "b2", value: "Banana" },
{ cell: "c2", value: 6.68, format: "currency" },
{ cell: "d2", value: 430 },
{ cell: "e2", value: 2872.4, format: "currency" },

{ cell: "a3", value: "Belarus" },
{ cell: "b3", value: "Apple" },
{ cell: "c3", value: 3.75, format: "currency" },
{ cell: "d3", value: 600 },
{ cell: "e3", value: 2250, format: "currency" },

{ cell: "a4", value: "Peru" },
{ cell: "b4", value: "Grapes" },
{ cell: "c4", value: 7.69, format: "currency" },
{ cell: "d4", value: 740 },
{ cell: "e4", value: 5690.6, format: "currency" },

// more cells with data

Then open the Spreadsheet.svelte file, specify the line for data export and use the parse() method to load data:

import { Spreadsheet } from "@dhx/trial-spreadsheet";
import "@dhx/trial-spreadsheet/codebase/spreadsheet.min.css";
import { onMount } from "svelte";

export let data;

let spreadsheet;
let container;

onMount(() => {
spreadsheet = new Spreadsheet(container, {});"ActionName", () => {})

$: spreadsheet?.parse(data);

<div bind:this={container}></div>

The $: spreadsheet?.parse(data); line will provide data reloading on each applied change.

Now the Spreadsheet component is ready. When the element will be added to the page, it will initialize the Spreadsheet object with data. You can provide necessary configuration settings as well. Visit our Spreadsheet API docs to check the full list of available properties.

Handling events

When a user makes some action in the Spreadsheet, it invokes an event. You can use these events to detect the action and run the desired code for it. See the full list of events.

Open Spreadsheet.svelte and complete the onMount() method as in:

onMount(() => {
spreadsheet = new Spreadsheet(container, {});"ActionName", () => {do something});

Replace 'ActionName' with the actual name of the event you want to handle, and implement the corresponding code inside the callback function. Get more information about the work with events in the Event Handling article.

Step 3. Adding Spreadsheet into the app

Now it's time to add the component into our app. Open App.svelte and replace the default code with the following one:

import Spreadsheet from "./Spreadsheet.svelte";
import { getData } from "./data.js";

<Spreadsheet data={getData()} />

After that, when we start the app, we should see Spreadsheet loaded with data on a page.

Spreadsheet initialization

Now you should have a basic setup for integrating DHTMLX Spreadsheet with Svelte. You can customize the code according to your specific requirements.