Symbol palette in EJ2 TypeScript Diagram control

16 Dec 202424 minutes to read

The symbolPalette is a gallery of reusable symbols and diagram elements that can be dragged and dropped on the diagram surface multiple times.

Create symbol palette

The width and height properties of the symbol palette allows you to define the size of the symbol palette.

ej.diagrams.Diagram.Inject(ej.diagrams.SymbolPalette);
//Initializes the symbol palette
var palette = new ej.diagrams.SymbolPalette({
    width: '100%',
    height: '700px',
},'#element');

Add nodes and palettes to SymbolPalette

The collection of predefined symbols can be added to palettes using the symbols property.

A palette displays a group of related symbols and textually annotates the group with its header. A Palettes can be added as a collection of symbol groups.

To initialize a palette, define a JSON object with the unique property ID. Additionally, include the symbols property, which contains an array of different symbols.

The following code example illustrates how to define symbols in a palette and how to add them to the symbol palette:

index.ts
index.html
import {
    Diagram,
    NodeModel,
    SymbolPalette,
    ConnectorModel,
    Connector
} from '@syncfusion/ej2-diagrams';
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
    let basicShapes: NodeModel[] = [{
            id: 'Rectangle',
            shape: {
                type: 'Basic',
                shape: 'Rectangle'
            }
        },
        {
            id: 'Ellipse',
            shape: {
                type: 'Basic',
                shape: 'Ellipse'
            }
        },
        {
            id: 'Hexagon',
            shape: {
                type: 'Basic',
                shape: 'Hexagon'
            }
        }
    ];
    return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes(): NodeModel[] {
    let flowShapes: NodeModel[] = [{
            id: 'process',
            shape: {
                type: 'Flow',
                shape: 'Process'
            }
        },
        {
            id: 'document',
            shape: {
                type: 'Flow',
                shape: 'Document'
            }
        },
        {
            id: 'predefinedprocess',
            shape: {
                type: 'Flow',
                shape: 'PreDefinedProcess'
            }
        }
    ];
    return flowShapes;
}
//Initializes connector symbols for the symbol palette
export function getConnectors(): ConnectorModel[] {
    let connectorSymbols: ConnectorModel[] = [{
            id: 'Link1',
            type: 'Orthogonal',
            sourcePoint: {
                x: 0,
                y: 0
            },
            targetPoint: {
                x: 40,
                y: 40
            },
            targetDecorator: {
                shape: 'Arrow'
            }
        },
        {
            id: 'Link21',
            type: 'Straight',
            sourcePoint: {
                x: 0,
                y: 0
            },
            targetPoint: {
                x: 40,
                y: 40
            },
            targetDecorator: {
                shape: 'Arrow'
            }
        },
        {
            id: 'link33',
            type: 'Bezier',
            sourcePoint: {
                x: 0,
                y: 0
            },
            targetPoint: {
                x: 40,
                y: 40
            },
            style: {
                strokeWidth: 2
            },
            targetDecorator: {
                shape: 'None'
            }
        }
    ];

    return connectorSymbols;
}
//Initializes the SVG shapes for the symbol palette
export function getSvgShapes(): NodeModel[] {
    let svgSymbols: NodeModel[] = [
        {
            id: 'node2', style: { fill: 'none' },
            annotations: [{ content: 'Start \n Text Editing' }],
            shape: {
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                '<path id="path1" transform="rotate(0,128,128) translate(59.1078108549118,59) scale(4.3125,4.3125)  " fill="#FFFFFF" d="M12.12701,24.294998C12.75201,24.294998 13.258998,24.803009 13.258998,25.428009 13.258998,26.056 12.75201,26.563004 12.12701,26.563004 11.499019,26.563004 10.993007,26.056 10.993007,25.428009 10.993007,24.803009 11.499019,24.294998 12.12701,24.294998z M7.9750035,24.294998C8.6010101,24.294998 9.1090057,24.803009 9.1090057,25.428009 9.1090057,26.056 8.6010101,26.563004 7.9750035,26.563004 7.3480199,26.563004 6.8399942,26.056 6.8399942,25.428009 6.8399942,24.803009 7.3480199,24.294998 7.9750035,24.294998z M7.9750035,20.286011C8.6010101,20.286011 9.1090057,20.792999 9.1090057,21.419006 9.1090057,22.044006 8.6010101,22.552002 7.9750035,22.552002 7.3500035,22.552002 6.8420084,22.044006 6.8420084,21.419006 6.8420084,20.792999 7.3500035,20.286011 7.9750035,20.286011z M18.499994,19.317001C18.313013,19.317001,18.156,19.472,18.156,19.656006L18.156,27.01001C18.156,27.195007,18.313013,27.350006,18.499994,27.350006L29.521993,27.350006C29.707998,27.350006,29.865988,27.195007,29.865988,27.01001L29.865988,19.656006C29.865988,19.472,29.707998,19.317001,29.521993,19.317001z M17.243006,17.443008L30.778003,17.443008C31.425007,17.445007,31.947986,17.962006,31.950001,18.602997L31.950001,28.542007C31.947986,29.182999,31.425007,29.702011,30.778003,29.703003L25.654012,29.703003C25.511007,29.703003 25.399008,29.824997 25.413992,29.964996 25.430013,30.13501 25.452993,30.360001 25.477011,30.559998 25.506002,30.809998 25.727987,30.980011 25.976003,31.033997L27.756002,31.419006C27.907003,31.452011 28.015005,31.584 28.015005,31.738007 28.015005,31.883011 27.895986,32 27.74999,32L27.571005,32 20.450004,32 20.318016,32C20.171013,32 20.053001,31.883011 20.053001,31.738007 20.053001,31.585007 20.161003,31.452011 20.312004,31.419998L22.115989,31.033005C22.35601,30.98201 22.572014,30.815002 22.596,30.574005 22.616997,30.363007 22.636009,30.130997 22.648002,29.960007 22.658012,29.819 22.542015,29.70401 22.399986,29.70401L17.243006,29.703003C16.596002,29.702011,16.072992,29.182999,16.071008,28.542007L16.071008,18.602997C16.072992,17.962006,16.596002,17.445007,17.243006,17.443008z M7.9750035,16.133011C8.6020172,16.133011 9.1100128,16.641006 9.1100128,17.268005 9.1100128,17.893997 8.6020172,18.402008 7.9750035,18.402008 7.3489964,18.402008 6.8410013,17.893997 6.8410013,17.268005 6.8410013,16.641006 7.3489964,16.133011 7.9750035,16.133011z M24.027,13.762009C24.654014,13.762009 25.16201,14.270004 25.16201,14.895996 25.16201,15.522003 24.654014,16.029999 24.027,16.029999 23.400993,16.029999 22.892998,15.522003 22.892998,14.895996 22.892998,14.270004 23.400993,13.762009 24.027,13.762009z M24.027,9.6110077C24.653007,9.6110077 25.161003,10.119003 25.161003,10.74501 25.161003,11.37001 24.653007,11.878006 24.027,11.878006 23.402,11.878006 22.894005,11.37001 22.894005,10.74501 22.894005,10.119003 23.402,9.6110077 24.027,9.6110077z M24.027,5.6000061C24.654014,5.6000061 25.16201,6.1080017 25.16201,6.7350006 25.16201,7.3610077 24.654014,7.8690033 24.027,7.8690033 23.400993,7.8690033 22.892998,7.3610077 22.892998,6.7350006 22.892998,6.1080017 23.400993,5.6000061 24.027,5.6000061z M19.876001,5.6000061C20.503013,5.6000061 21.011009,6.1080017 21.011009,6.7350006 21.011009,7.3610077 20.503013,7.8690033 19.876001,7.8690033 19.249994,7.8690033 18.743006,7.3610077 18.743006,6.7350006 18.743006,6.1080017 19.249994,5.6000061 19.876001,5.6000061z M2.4290157,1.8740082C2.2420037,1.8740082,2.0850215,2.029007,2.0850215,2.2140045L2.0850215,9.5680084C2.0850215,9.753006,2.2420037,9.9069977,2.4290157,9.9069977L13.451014,9.9069977C13.637995,9.9069977,13.795008,9.753006,13.795008,9.5680084L13.795008,2.2140045C13.795008,2.029007,13.637995,1.8740082,13.451014,1.8740082z M1.1730042,0L14.706996,0C15.353999,0.0019989014,15.877009,0.51899719,15.878993,1.1600037L15.878993,11.100006C15.877009,11.740005,15.353999,12.26001,14.706996,12.26001L9.5830047,12.26001C9.4399994,12.26001 9.3290069,12.382004 9.3420074,12.52301 9.3600128,12.692001 9.3829925,12.917999 9.4060028,13.117004 9.4349945,13.367004 9.6570099,13.53801 9.9049957,13.591003L11.684994,13.975998C11.835994,14.009003 11.945003,14.141998 11.945003,14.294998 11.945003,14.440002 11.826015,14.557007 11.679012,14.557007L11.499996,14.557007 4.3789966,14.557007 4.2470081,14.557007C4.1000049,14.557007 3.9819935,14.440002 3.9819937,14.294998 3.9819935,14.141998 4.0899952,14.009003 4.2409961,13.977005L6.0450113,13.589996C6.2860086,13.539001 6.501005,13.373001 6.5249918,13.130997 6.5460184,12.921005 6.5650003,12.688004 6.5769937,12.516998 6.5870035,12.376999 6.4710062,12.262009 6.3290079,12.262009L1.1730042,12.26001C0.52499391,12.26001,0.0020143806,11.740005,0,11.100006L0,1.1600037C0.0020143806,0.51899719,0.52499391,0.0019989014,1.1730042,0z"/>' +
              '</g>'
            }
        }
    ];
    return svgSymbols;
}
//Initializes the HTML shapes for the symbol palette
export function getHtmlShapes(): NodeModel[] {
    let htmlSymbols: NodeModel[] = [
        {
            id: 'HTML', borderColor: 'black', borderWidth: 1,
            shape: {
                type: 'HTML',
                content: '<div style="height:100%;width:100%;"><button type="button" style="width:100%;overflow:hidden">HTML</button></div>'
            }
        },
        {
            id: 'Checkbox', borderColor: 'black', borderWidth: 1,
            shape: {
                type: 'HTML',
                content: '<div><div style="height:50%;width:100%;"><input type="checkbox" value="Yes" style="width:25%">Yes</input></div>' +
                '<div style="height:50%;width:100%;"><input type="checkbox" value="No" style="width:25%">No</input></div></div>'
            }
        },
        {
            id: 'Dropdown', borderColor: 'black', borderWidth: 1,
            shape: {
                type: 'HTML',
                content: '<div style="height:100%;width:100%;"><select style="width:100%"><option>SVG</option><option>Canvas</option></select></div>'
            }
        },
    ];
    return htmlSymbols;
}
//Initializes the symbol palette
let palette: SymbolPalette = new SymbolPalette({
    //Defines how many palettes can be at expanded mode at a time
    expandMode: 'Multiple',
    //Defines the palette collection
    palettes: [{
            //Sets the id of the palette
            id: 'flow',
            //Sets whether the palette expands/collapse its children
            expanded: true,
            //Adds the palette items to palette
            symbols: getFlowShapes(),
            //Sets the header text of the palette
            title: 'Flow Shapes',
            iconCss: 'e-ddb-icons e-flow'
        },
        {
            id: 'basic',
            expanded: true,
            symbols: getBasicShapes(),
            title: 'Basic Shapes',
            iconCss: 'e-ddb-icons e-basic'
        },
        {
            id: 'SVG',
            expanded: true,
            symbols: getSvgShapes(),
            title: 'SVG Shapes',
            iconCss: 'e-ddb-icons e-basic'
        },
        {
            id: 'html',
            expanded: true,
            symbols: getHtmlShapes(),
            title: 'HTML Shapes',
            iconCss: 'e-ddb-icons e-basic'
        },
        {
            id: 'connectors',
            expanded: true,
            symbols: getConnectors(),
            title: 'Connectors',
            iconCss: 'e-ddb-icons e-connector'
        }
    ],
    //Specifies the default size to render symbols
    symbolHeight: 80,
    symbolWidth: 80,
    enableAnimation: false
});
palette.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-diagrams/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/fabric.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
<style>

    @font-face {
        font-family: 'e-ddb-icons';
        src: 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) format('truetype');
        font-weight: normal;
        font-style: normal;
    }

    .e-ddb-icons {
        font-family: 'e-ddb-icons';
        speak: none;
        font-size: 16px;
        font-style: normal;
        font-weight: normal;
        font-variant: normal;
        text-transform: none;
        line-height: 1;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    .e-basic::before {
        content: "\e726";
    }

    .e-flow::before {
        content: "\e724";
    }

    .e-connector::before {
        content: "\e725";
    }
</style>

Add connectors in symbol palette

Connectors can be added to the symbol palette by defining them in the symbols array of the palette.
The following example shows how to render connectors in the symbol palette:

index.ts
index.html
import { SymbolPalette, ConnectorModel } from '@syncfusion/ej2-diagrams';

function getConnectors() {
  var connectors: ConnectorModel[] = [
    {
      id: 'Straight',
      type: 'Straight',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      targetDecorator: {
        shape: 'Arrow',
        style: { strokeColor: '#757575', fill: '#757575' },
      },
      style: { strokeWidth: 1, strokeColor: '#757575' },
    },
    {
      id: 'Orthogonal',
      type: 'Orthogonal',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      style: { strokeWidth: 1, strokeColor: '#757575' },
      targetDecorator: { shape: 'Arrow' },
    },
    {
      id: 'Bezier',
      type: 'Bezier',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      targetDecorator: {
        shape: 'Arrow',
        style: { strokeColor: '#757575', fill: '#757575' },
      },
      style: { strokeWidth: 1, strokeColor: '#757575' },
    },
  ];
  return connectors;
}
//Initializes the symbol palette
let palette: SymbolPalette = new SymbolPalette({
  //Expands only one palette at a time
  expandMode: 'Single',
  palettes: [
    {
      id: 'connectors',
      expanded: true,
      symbols: getConnectors(),
      title: 'Connectors',
    },
  ],
  width: '100%',
  height: '100%',
});
palette.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-diagrams/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/fabric.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Add group nodes in symbol palette

The symbol palette supports adding group nodes. To add group nodes to the palette, the child nodes should be defined first, followed by the parent node. Refer to the following code to see how to render group nodes in the symbol palette:

index.ts
index.html
import { SymbolPalette, NodeModel, Diagram } from '@syncfusion/ej2-diagrams';

function getGroupNodes() {
  var nodes: NodeModel[] = [
    {
      id: 'child1',
      width: 50,
      height: 50,
      style: { fill: 'green' },
      offsetX: 100,
      offsetY: 100,
    },
    {
      id: 'child2',
      width: 50,
      height: 50,
      style: { fill: 'yellow' },
      offsetX: 170,
      offsetY: 110,
    },
    {
      id: 'group1',
      children: ['child1', 'child2'],
      padding: { left: 10, right: 10, top: 10, bottom: 10 },
    },
    {
      id: 'child3',
      width: 70,
      height: 40,
      style: { fill: 'pink' },
      offsetX: 100,
      offsetY: 150,
    },
    {
      id: 'child4',
      width: 70,
      height: 40,
      style: { fill: 'orange' },
      offsetX: 100,
      offsetY: 200,
    },
    {
      id: 'group2',
      children: ['child3', 'child4'],
      padding: { left: 10, right: 10, top: 10, bottom: 10 },
    },
  ];
  return nodes;
}
//Initializes the symbol palette
let palette: SymbolPalette = new SymbolPalette({
  palettes: [
    {
      id: 'Group',
      expanded: true,
      symbols: getGroupNodes(),
      title: 'Group Nodes',
    },
  ],
  width: '100%',
  height: '100%',
});
palette.appendTo('#element');

let diagram = new Diagram(
  {
    width: 1000,
    height: 500,
  },
  '#diagram'
);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-diagrams/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/fabric.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
        <div id="diagram"></div>
    </div>
</body>

</html>

Drag and drop symbols from palette to diagram

To drag and drop symbols from the palette to the diagram canvas, mousedown on the desired symbol in the palette, drag it to the desired location on the diagram canvas, and release the mouse button to drop it.

Drag and drop symbols

Add symbols to palette at runtime

Symbols can be added to palette at runtime by using public method, addPaletteItem. The following example shows how to add shapes to the palette at runtime.

index.ts
index.html
import { NodeModel, randomId, SymbolPalette } from '@syncfusion/ej2-diagrams';
//Initialize basic shapes palette
function getBasicShapes(): NodeModel[] {
  let basicShapes: NodeModel[] = [
    {
      id: 'Rectangle',
      shape: { type: 'Basic', shape: 'Rectangle' },
      style: { strokeWidth: 2 },
    },
    {
      id: 'Ellipse',
      shape: { type: 'Basic', shape: 'Ellipse' },
      style: { strokeWidth: 2 },
    },
  ];
  return basicShapes;
}
//Initialize the flowshapes for the symbol palette
function getFlowShapes() {
  var flowShapes: NodeModel[] = [
    {
      id: 'Process',
      shape: { type: 'Flow', shape: 'Process' },
      style: { strokeWidth: 2 },
    },
    {
      id: 'Document',
      shape: { type: 'Flow', shape: 'Document' },
      style: { strokeWidth: 2 },
    },
  ];
  return flowShapes;
}
//Initializes the symbol palette
let symbolPalette: SymbolPalette = new SymbolPalette({
  palettes: [
    {
      id: 'basic',
      expanded: true,
      symbols: getBasicShapes(),
      title: 'Basic Shapes',
    },
    {
      id: 'flow',
      expanded: true,
      symbols: getFlowShapes(),
      title: 'Flow shapes',
    },
  ],
  symbolHeight: 50,
  symbolWidth: 50,
  symbolPreview: { width: 100, height: 100 },
  expandMode: 'Multiple',
  height: '100%',
  width: '100%',
});
symbolPalette.appendTo('#element');

(document.getElementById('addBasicShape') as HTMLInputElement).onclick = () => {
  let node: NodeModel = {
    id: 'Plus' + randomId(),
    shape: { type: 'Basic', shape: 'Plus' },
  };
  /**
   * parameter 1 - The ID of the palette where the new shape is to be added.
   * parameter 2 - node/connector to be added
   */
  symbolPalette.addPaletteItem('basic', node);
};

(document.getElementById('addFlowShape') as HTMLInputElement).onclick = () => {
  let node: NodeModel = {
    id: 'Decision' + randomId(),
    shape: { type: 'Flow', shape: 'Decision' },
  };
  /**
   * parameter 1 - The ID of the palette where the new shape is to be added.
   * parameter 2 - node/connector to be added
   */
  symbolPalette.addPaletteItem('flow', node);
};
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-diagrams/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/fabric.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <input type="button" value="addBasicShape" id="addBasicShape" />
        <input type="button" value="addFlowShape" id="addFlowShape" />
        <div id='element'></div>
    </div>
</body>

</html>

Remove symbols from palette at runtime

Symbols can be removed from palette at runtime by using public method, removePaletteItem. The following example shows how to remove shapes from the palette at runtime.

index.ts
index.html
import { NodeModel, SymbolPalette } from '@syncfusion/ej2-diagrams';
//Initialize basic shapes palette
function getBasicShapes(): NodeModel[] {
  let basicShapes: NodeModel[] = [
    {
      id: 'Rectangle',
      shape: { type: 'Basic', shape: 'Rectangle' },
      style: { strokeWidth: 2 },
    },
    {
      id: 'Ellipse',
      shape: { type: 'Basic', shape: 'Ellipse' },
      style: { strokeWidth: 2 },
    },
  ];
  return basicShapes;
}
//Initialize the flowshapes for the symbol palette
function getFlowShapes() {
  var flowShapes: NodeModel[] = [
    {
      id: 'Decision',
      shape: { type: 'Flow', shape: 'Decision' },
      style: { strokeWidth: 2 },
    },
    {
      id: 'Document',
      shape: { type: 'Flow', shape: 'Document' },
      style: { strokeWidth: 2 },
    },
  ];
  return flowShapes;
}
//Initializes the symbol palette
let symbolPalette: SymbolPalette = new SymbolPalette({
  palettes: [
    {
      id: 'basic',
      expanded: true,
      symbols: getBasicShapes(),
      title: 'Basic Shapes',
    },
    {
      id: 'flow',
      expanded: true,
      symbols: getFlowShapes(),
      title: 'Flow shapes',
    },
  ],
  symbolHeight: 50,
  symbolWidth: 50,
  symbolPreview: { width: 100, height: 100 },
  expandMode: 'Multiple',
  height: '100%',
  width: '100%',
});
symbolPalette.appendTo('#element');

(document.getElementById('removeBasicShape') as HTMLInputElement).onclick =
  () => {
    /**
     * parameter 1 - The ID of the palette where the shape to be removed.
     * parameter 2 - ID of the shape to be removed
     */
    let id = symbolPalette.palettes[0].symbols[0].id;
    symbolPalette.removePaletteItem('basic', id);
  };

(document.getElementById('removeFlowShape') as HTMLInputElement).onclick =
  () => {
    let id = symbolPalette.palettes[1].symbols[0].id;
    /**
     * parameter 1 - The ID of the palette where the shape to be removed.
     * parameter 2 - ID of the shape to be removed
     */
    symbolPalette.removePaletteItem('flow', id);
  };
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-diagrams/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/fabric.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <input type="button" value="removeBasicShape" id="removeBasicShape" />
      <input type="button" value="removeFlowShape" id="removeFlowShape" />
        <div id='element'></div>
    </div>
</body>

</html>

Symbol defaults

While adding more symbols such as nodes and connectors to the palette, you can define the default settings for these objects using the getNodeDefaults and the getConnectorDefaults properties of the diagram. These properties allow you to specify default configurations for nodes and connectors, ensuring consistency and saving time when adding multiple symbols. By setting these properties, you can predefine attributes such as size, color, shape for nodes and line style, thickness, for connectors.

In the following example, the fill color of node and target decorator shape of connector is defined in getNodeDefaults and getConnectorDefaults respectively.

index.ts
index.html
import {
    NodeModel,
    SymbolPalette,
    ConnectorModel,
  } from '@syncfusion/ej2-diagrams';
  //Initialize the flowshapes for the symbol palette
  function getFlowShapes(): NodeModel[] {
    let flowShapes: NodeModel[] = [
      {
        id: 'process',
        shape: {
          type: 'Flow',
          shape: 'Process',
        },
      },
      {
        id: 'document',
        shape: {
          type: 'Flow',
          shape: 'Document',
        },
      },
      {
        id: 'predefinedprocess',
        shape: {
          type: 'Flow',
          shape: 'PreDefinedProcess',
        },
      },
    ];
    return flowShapes;
  }
  function getConnectors() {
    let connectors = [
      {
        id: 'Link1',
        type: 'Orthogonal',
        sourcePoint: { x: 0, y: 0 },
        targetPoint: { x: 60, y: 60 },
        style: { strokeWidth: 1, strokeColor: '#757575' },
        targetDecorator: {
          shape: 'Arrow',
          style: { strokeColor: '#757575', fill: '#757575' },
        },
      },
      {
        id: 'link3',
        type: 'Orthogonal',
        sourcePoint: { x: 0, y: 0 },
        targetPoint: { x: 60, y: 60 },
        targetDecorator: { shape: 'None' },
        style: { strokeWidth: 1, strokeColor: '#757575' },
      },
      {
        id: 'Link21',
        type: 'Straight',
        sourcePoint: { x: 0, y: 0 },
        targetPoint: { x: 60, y: 60 },
        style: { strokeWidth: 1, strokeColor: '#757575' },
        targetDecorator: {
          shape: 'Arrow',
          style: { strokeColor: '#757575', fill: '#757575' },
        },
      },
      {
        id: 'link23',
        type: 'Straight',
        sourcePoint: { x: 0, y: 0 },
        targetPoint: { x: 60, y: 60 },
        targetDecorator: { shape: 'None' },
        style: { strokeWidth: 1, strokeColor: '#757575' },
      },
      {
        id: 'link33',
        type: 'Bezier',
        sourcePoint: { x: 0, y: 0 },
        targetPoint: { x: 60, y: 60 },
        targetDecorator: { shape: 'None' },
        style: { strokeWidth: 1, strokeColor: '#757575' },
      },
    ];
    return connectors;
  }
  //Initializes the symbol palette
  let palette: SymbolPalette = new SymbolPalette({
  
    palettes: [
      {
        id: 'flow',
        symbols: getFlowShapes(),
        title: 'Flow Shapes',
      },
      {
        id: 'connectors',
        symbols: getConnectors(),
        title: 'Connectors',
      },
    ],
    //Returns the default properties of node
    getNodeDefaults: function (node: NodeModel) {
      node.style.fill = 'yellow';
      return node;
    },
    //Returns the default properties of connector
    getConnectorDefaults: function (connector: ConnectorModel) {
      connector.targetDecorator.shape = 'DoubleArrow';
      return connector;
    },
  });
  palette.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-diagrams/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/fabric.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Add palettes at runtime

You can dynamically add palettes to the symbol palette at runtime to enhance flexibility and customization. This allows you to introduce new groups of symbols as needed without having to reload or reinitialize the diagram. The addPalettes method of the symbol palette enables you to create and configure new palettes programmatically. This method takes parameters that define the palette’s properties, such as the palette ID, title, and the symbols it contains.

Follow the example below to see how to add a palette at runtime.

index.ts
index.html
import {
  NodeModel,
  SymbolPalette,
  ConnectorModel,
  randomId,
  Palette,
  PaletteModel,
} from '@syncfusion/ej2-diagrams';
import { TabItem } from '@syncfusion/ej2-navigations';
//Initialize the flowshapes for the symbol palette
function getFlowShapes(): NodeModel[] {
  let flowShapes: NodeModel[] = [
    {
      id: 'process',
      shape: {
        type: 'Flow',
        shape: 'Process',
      },
    },
    {
      id: 'document',
      shape: {
        type: 'Flow',
        shape: 'Document',
      },
    },
    {
      id: 'predefinedprocess',
      shape: {
        type: 'Flow',
        shape: 'PreDefinedProcess',
      },
    },
  ];
  return flowShapes;
}
function getConnectors() {
  let connectors = [
    {
      id: 'Link1',
      type: 'Orthogonal',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      style: { strokeWidth: 1, strokeColor: '#757575' },
      targetDecorator: {
        shape: 'Arrow',
        style: { strokeColor: '#757575', fill: '#757575' },
      },
    },
    {
      id: 'link3',
      type: 'Orthogonal',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      targetDecorator: { shape: 'None' },
      style: { strokeWidth: 1, strokeColor: '#757575' },
    },
    {
      id: 'Link21',
      type: 'Straight',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      style: { strokeWidth: 1, strokeColor: '#757575' },
      targetDecorator: {
        shape: 'Arrow',
        style: { strokeColor: '#757575', fill: '#757575' },
      },
    },
    {
      id: 'link23',
      type: 'Straight',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      targetDecorator: { shape: 'None' },
      style: { strokeWidth: 1, strokeColor: '#757575' },
    },
    {
      id: 'link33',
      type: 'Bezier',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      targetDecorator: { shape: 'None' },
      style: { strokeWidth: 1, strokeColor: '#757575' },
    },
  ];
  return connectors;
}
//Initializes the symbol palette
let palette: SymbolPalette = new SymbolPalette({
  expandMode: 'Multiple',
  enablePersistence: true,

  palettes: [
    {
      id: 'flow',
      symbols: getFlowShapes(),
      title: 'Flow Shapes',
    },
    {
      id: 'connectors',
      symbols: getConnectors(),
      title: 'Connectors',
    },
  ],
});
palette.appendTo('#element');

document.getElementById('addPalette').onclick = () => {
  let newPaletteShapes: NodeModel[] = [
    {
      id: 'rectangle' + randomId(),
      shape: { type: 'Basic', shape: 'Rectangle' },
    },
    {
      id: 'plus' + randomId(),
      shape: { type: 'Basic', shape: 'Plus' },
    },
  ];
  let newPalette: PaletteModel[] = [
    {
      id: 'basic' + randomId(),
      symbols: newPaletteShapes,
      title: 'New Shapes',
    },
  ];
  /**
   * parameter - The new palette to be added in symbol palette.
   */
  palette.addPalettes(newPalette);
};
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-diagrams/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/fabric.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <input type="button" value="addPalette" id="addPalette" />
        <div id='element'></div>
    </div>
</body>

</html>

Remove palettes at runtime

You can remove palettes from the symbol palette at runtime. There are two ways to do this:

Use the removePalette method to remove a single palette by its ID.
Use the removePalettes method to remove multiple palettes by passing an array of palette IDs as a parameter.

Follow the example below to see how to remove palettes at runtime.

index.ts
index.html
import { NodeModel, SymbolPalette } from '@syncfusion/ej2-diagrams';
//Initialize the flowshapes for the symbol palette
function getFlowShapes(): NodeModel[] {
  let flowShapes: NodeModel[] = [
    {
      id: 'process',
      shape: {
        type: 'Flow',
        shape: 'Process',
      },
    },
    {
      id: 'document',
      shape: {
        type: 'Flow',
        shape: 'Document',
      },
    },
    {
      id: 'predefinedprocess',
      shape: {
        type: 'Flow',
        shape: 'PreDefinedProcess',
      },
    },
  ];
  return flowShapes;
}
//Initialize the basic shapes for the symbol palette
function getBasicShapes(): NodeModel[] {
  let nodes: NodeModel[] = [
    {
      id: 'rectangle',
      shape: {
        type: 'Basic',
        shape: 'Rectangle',
      },
    },
    {
      id: 'plus',
      shape: {
        type: 'Basic',
        shape: 'Plus',
      },
    },
    {
      id: 'triangle',
      shape: {
        type: 'Basic',
        shape: 'RightTriangle',
      },
    },
  ];
  return nodes;
}
//Initialize the connectors for the symbol palette
function getConnectors() {
  let connectors = [
    {
      id: 'Link1',
      type: 'Orthogonal',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      style: { strokeWidth: 1, strokeColor: '#757575' },
      targetDecorator: {
        shape: 'Arrow',
        style: { strokeColor: '#757575', fill: '#757575' },
      },
    },
    {
      id: 'link3',
      type: 'Orthogonal',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      targetDecorator: { shape: 'None' },
      style: { strokeWidth: 1, strokeColor: '#757575' },
    },
    {
      id: 'Link21',
      type: 'Straight',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      style: { strokeWidth: 1, strokeColor: '#757575' },
      targetDecorator: {
        shape: 'Arrow',
        style: { strokeColor: '#757575', fill: '#757575' },
      },
    },
    {
      id: 'link23',
      type: 'Straight',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      targetDecorator: { shape: 'None' },
      style: { strokeWidth: 1, strokeColor: '#757575' },
    },
    {
      id: 'link33',
      type: 'Bezier',
      sourcePoint: { x: 0, y: 0 },
      targetPoint: { x: 60, y: 60 },
      targetDecorator: { shape: 'None' },
      style: { strokeWidth: 1, strokeColor: '#757575' },
    },
  ];
  return connectors;
}
//Initializes the symbol palette
let palette: SymbolPalette = new SymbolPalette({
  expandMode: 'Multiple',
  enablePersistence: true,

  palettes: [
    {
      id: 'flow',
      symbols: getFlowShapes(),
      title: 'Flow Shapes',
    },
    {
      id: 'basic',
      symbols: getBasicShapes(),
      title: 'Basic Shapes',
    },
    {
      id: 'connectors',
      symbols: getConnectors(),
      title: 'Connectors',
    },
  ],
});
palette.appendTo('#element');

(document.getElementById('removePalette') as HTMLInputElement).onclick = () => {
  /**
   * parameter - The ID of palette to be removed in symbol palette.
   */
  palette.removePalette('basic');
  palette.refresh();
};

(document.getElementById('removePalettes') as HTMLInputElement).onclick = () => {
  let palettes: string[] = ['flow', 'connectors'];
  /**
   * parameter - The ID array of palettes to be removed in symbol palette.
   */
  palette.removePalettes(palettes);
  palette.refresh();
};
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-diagrams/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/fabric.css" rel="stylesheet" />
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <input type="button" value="removePalette" id="removePalette" />
        <input type="button" value="removeMultiplePalettes" id="removePalettes" />
        <div id='element'></div>
    </div>
</body>

</html>

Stretch the symbols into the palette

The fit property defines whether the symbol has to be fit inside the size, that is defined by the symbol palette. For example, when you resize the rectangle in the symbol, ratio of the rectangle size has to be maintained rather changing into square shape. The following code example illustrates how to customize the symbol size.

index.ts
index.html
import {
    Diagram,
    NodeModel,
    SymbolPalette,
    SymbolInfo
} from '@syncfusion/ej2-diagrams';
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
    let basicShapes: NodeModel[] = [{
            id: 'Rectangle',
            shape: {
                type: 'Basic',
                shape: 'Rectangle'
            }
        },
        {
            id: 'Ellipse',
            shape: {
                type: 'Basic',
                shape: 'Ellipse'
            }
        },
        {
            id: 'Hexagon',
            shape: {
                type: 'Basic',
                shape: 'Hexagon'
            }
        },
    ];
    return basicShapes;
}
//Initializes the symbol palette
let palette: SymbolPalette = new SymbolPalette({
    expandMode: 'Multiple',
    palettes: [{
        id: 'basic',
        expanded: true,
        symbols: getBasicShapes(),
        title: 'Basic Shapes',
        iconCss: 'e-ddb-icons e-basic'
    }, ],
    symbolHeight: 80,
    symbolWidth: 80,
    enableAnimation: false,
    //Sets the size, appearance, and description of a symbol
    getSymbolInfo: function(symbol) {
        // Enables to fit the content into the specified palette item size
        return {
            fit: true
        };
        // When it is set as false, the element is rendered with actual node size
    },
});
palette.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Diagram</title>
    <meta charset="utf-8" />
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    @font-face {
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) format('truetype');
        font-weight: normal;
        font-style: normal;
    }

    .e-ddb-icons {
        font-family: 'e-ddb-icons';
        speak: none;
        font-size: 16px;
        font-style: normal;
        font-weight: normal;
        font-variant: normal;
        text-transform: none;
        line-height: 1;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    .e-basic::before {
        content: "\e726";
    }

    .e-flow::before {
        content: "\e724";
    }

    .e-connector::before {
        content: "\e725";
    }
</style>

Refresh symbol palette

The refresh method allows you to refresh the symbols dynamically in the SymbolPalette.

//To refresh the symbols in symbol palette
symbolPalette.refresh();