JavaScript/jQuery Diagram - Getting Started

The Diagram UI component provides a visual interface to help you design new and modify existing diagrams.

View Demo

Add diagram resources (scripts and styles) onto the page.

• npm

  The devexpress-diagram is a dependency of the DevExtreme package. Therefore, install the DevExtreme npm package to include the Diagram in your project. Then, add the dx-diagram.min.css and dx-diagram.min.js files to your page.

  HTML

  <link rel="stylesheet" href="node_modules/devexpress-diagram/dx-diagram.min.css">
  <script type="text/javascript" src="node_modules/devexpress-diagram/dx-diagram.min.js"></script>

• CDN

  Add the dx-diagram.min.css and dx-diagram.min.js files to your page.

  HTML

  <link rel="stylesheet" href="https://cdn3.devexpress.com/jslib/22.1.14/css/dx-diagram.min.css">
  <script src="https://cdn3.devexpress.com/jslib/22.1.14/js/dx-diagram.min.js"></script>

• Local Scripts

  You can find all the required files in the DevExtreme zip archive or DevExtreme folder (%ProgramFiles%\DevExpress 22.1\DevExtreme\Sources). Copy the dx-diagram.min.js and dx-diagram.min.css files into your application folder. Then, link the required files.

  HTML

  <script type="text/javascript" src="js/dx-diagram.min.js"></script>
  <link rel="stylesheet" href="css/dx-diagram.min.css">

Use the the dx-diagram.css and dx-diagram.js files to add an unminified version of the resource files to your page.

    @* Diagram styles*@
    <link rel="stylesheet" href="https://cdn3.devexpress.com/jslib/22.1.14/css/dx-diagram.min.css">
    @* DevExtreme theme *@
    <link rel="stylesheet" href="https://cdn3.devexpress.com/jslib/22.1.14/css/dx.light.css">

    @* jQuery *@
    <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
    @* Diagram scripts *@
    <script type="text/javascript" src="https://cdn3.devexpress.com/jslib/22.1.14/js/dx-diagram.min.js"></script>
    @* DevExtreme common scripts *@
    <script type="text/javascript" src="https://cdn3.devexpress.com/jslib/22.1.14/js/dx.all.js"></script>

Initialize the Diagram UI component in a DOM element.

    $(function() {
        $("#diagram").dxDiagram();
    });

    <div id="diagram"></div>

To load and save a diagram to a string variable, use the import and export methods.

var diagram = $("#diagram").dxDiagram("instance");
var diagramContent = diagram.export(); // load diagram content to a variable
diagram.import(newDiagramContent); // replace the existing diagram with a new diagram