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Tooltip in JavaScript Kanban control

The tooltip is used to show the card information when the cursor hover over the card elements using the enableTooltip property. Tooltip content is dynamically set based on hovering over the card elements.

If you wish to show tooltip on Kanban board custom elements, you need to add e-tooltip-text class name of a particular element.

Tooltip template

You can customize the tooltip content with any HTML or CSS element and styling using the tooltipTemplate property. In the following demo, the tooltip is customized with HTML elements.

Source
Preview
index.ts
index.html
datasource.ts
import { Kanban } from '@syncfusion/ej2-kanban';
import { kanbanData } from './datasource.ts';

let kanbanObj: Kanban = new Kanban({
    dataSource: kanbanData,
    keyField: 'Status',
    columns: [
        { headerText: 'Backlog', keyField: 'Open' },
        { headerText: 'In Progress', keyField: 'InProgress' },
        { headerText: 'Testing', keyField: 'Testing' },
        { headerText: 'Done', keyField: 'Close' }
    ],
    cardSettings: {
        contentField: 'Summary',
        headerField: 'Id'
    },
    enableTooltip: true,
    tooltipTemplate: '#tooltipTemplate'
});
kanbanObj.appendTo('#Kanban');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Kanban Tooltip Template</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Tooltip template" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-layouts/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-kanban/styles/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js" type="text/javascript"></script>
    <script src="systemjs.config.js" type="text/javascript"></script>
    <script id="tooltipTemplate" type="text/x-template">
        <div class='e-kanbanTooltipTemp'>
            <table>
                <tr>
                    <td class="details">
                        <table>
                            <colgroup>
                                <col style="width:30%">
                                <col style="width:70%">
                            </colgroup>
                            <tbody>
                                <tr>
                                    <td class="CardHeader">Assignee:</td>
                                    <td>${Assignee}</td>
                                </tr>
                                <tr>
                                    <td class="CardHeader">Type:</td>
                                    <td>${Type}</td>
                                </tr>                                
                                <tr>
                                    <td class="CardHeader">Estimate:</td>
                                    <td>${Estimate}</td>
                                </tr>                                
                                <tr>
                                    <td class="CardHeader">Summary:</td>
                                    <td>${Summary}</td>
                                </tr>
                            </tbody>
                        </table>
                    </td>
                </tr>
            </table>
        </div>
    </script>
    <style type="text/css">
        .e-kanbanTooltipTemp {
            width: 250px;
            padding: 3px;
        }

        .e-kanbanTooltipTemp>table {
            width: 100%;
        }

        .e-kanbanTooltipTemp td {
            vertical-align: top;
        }
    </style>
</head>

<body>
    <div id='loader'>LOADING....</div>
    <div id='container'>
        <div class="content-wrapper">
            <div id="Kanban"></div>
        </div>
    </div>
</body>

</html>
export let kanbanData: Object[] = [
    {
        'Id': 1,
        'Status': 'Open',
        'Summary': 'Analyze the new requirements gathered from the customer.',
        'Type': 'Story',
        'Priority': 'Low',
        'Tags': 'Analyze,Customer',
        'Estimate': 3.5,
        'Assignee': 'Nancy Davloio',
        'RankId': 1
    },
    {
        'Id': 2,
        'Status': 'InProgress',
        'Summary': 'Improve application performance',
        'Type': 'Improvement',
        'Priority': 'Normal',
        'Tags': 'Improvement',
        'Estimate': 6,
        'Assignee': 'Andrew Fuller',
        'RankId': 1
    },
    {
        'Id': 3,
        'Status': 'Open',
        'Summary': 'Arrange a web meeting with the customer to get new requirements.',
        'Type': 'Others',
        'Priority': 'Critical',
        'Tags': 'Meeting',
        'Estimate': 5.5,
        'Assignee': 'Janet Leverling',
        'RankId': 2
    },
    {
        'Id': 4,
        'Status': 'InProgress',
        'Summary': 'Fix the issues reported in the IE browser.',
        'Type': 'Bug',
        'Priority': 'Release Breaker',
        'Tags': 'IE',
        'Estimate': 2.5,
        'Assignee': 'Janet Leverling',
        'RankId': 2
    },
    {
        'Id': 5,
        'Status': 'Testing',
        'Summary': 'Fix the issues reported by the customer.',
        'Type': 'Bug',
        'Priority': 'Low',
        'Tags': 'Customer',
        'Estimate': '3.5',
        'Assignee': 'Steven walker',
        'RankId': 1
    },
    {
        'Id': 6,
        'Status': 'Close',
        'Summary': 'Arrange a web meeting with the customer to get the login page requirements.',
        'Type': 'Others',
        'Priority': 'Low',
        'Tags': 'Meeting',
        'Estimate': 2,
        'Assignee': 'Michael Suyama',
        'RankId': 1
    },
    {
        'Id': 7,
        'Status': 'Validate',
        'Summary': 'Validate new requirements',
        'Type': 'Improvement',
        'Priority': 'Low',
        'Tags': 'Validation',
        'Estimate': 1.5,
        'Assignee': 'Robert King',
        'RankId': 1
    },
    {
        'Id': 8,
        'Status': 'Close',
        'Summary': 'Login page validation',
        'Type': 'Story',
        'Priority': 'Release Breaker',
        'Tags': 'Validation,Fix',
        'Estimate': 2.5,
        'Assignee': 'Laura Callahan',
        'RankId': 2
    },
    {
        'Id': 9,
        'Status': 'Testing',
        'Summary': 'Fix the issues reported in Safari browser.',
        'Type': 'Bug',
        'Priority': 'Release Breaker',
        'Tags': 'Fix,Safari',
        'Estimate': 1.5,
        'Assignee': 'Nancy Davloio',
        'RankId': 2
    },
    {
        'Id': 10,
        'Status': 'Close',
        'Summary': 'Test the application in the IE browser.',
        'Type': 'Story',
        'Priority': 'Low',
        'Tags': 'Testing,IE',
        'Estimate': 5.5,
        'Assignee': 'Margaret hamilt',
        'RankId': 3
    },
    {
        'Id': 11,
        'Status': 'Validate',
        'Summary': 'Validate the issues reported by the customer.',
        'Type': 'Story',
        'Priority': 'High',
        'Tags': 'Validation,Fix',
        'Estimate': 1,
        'Assignee': 'Steven walker',
        'RankId': 1
    },
    {
        'Id': 12,
        'Status': 'Testing',
        'Summary': 'Check Login page validation.',
        'Type': 'Story',
        'Priority': 'Release Breaker',
        'Tags': 'Testing',
        'Estimate': 0.5,
        'Assignee': 'Michael Suyama',
        'RankId': 3
    },
    {
        'Id': 13,
        'Status': 'Open',
        'Summary': 'API improvements.',
        'Type': 'Improvement',
        'Priority': 'High',
        'Tags': 'Grid,API',
        'Estimate': 3.5,
        'Assignee': 'Robert King',
        'RankId': 3
    },
    {
        'Id': 14,
        'Status': 'InProgress',
        'Summary': 'Add responsive support to application',
        'Type': 'Epic',
        'Priority': 'Critical',
        'Tags': 'Responsive',
        'Estimate': 6,
        'Assignee': 'Laura Callahan',
        'RankId': 3
    },
    {
        'Id': 15,
        'Status': 'Open',
        'Summary': 'Show the retrieved data from the server in grid control.',
        'Type': 'Story',
        'Priority': 'High',
        'Tags': 'Database,SQL',
        'Estimate': 5.5,
        'Assignee': 'Margaret hamilt',
        'RankId': 4
    },
    {
        'Id': 16,
        'Status': 'InProgress',
        'Summary': 'Fix cannot open user’s default database SQL error.',
        'Priority': 'Critical',
        'Type': 'Bug',
        'Tags': 'Database,Sql2008',
        'Estimate': 2.5,
        'Assignee': 'Janet Leverling',
        'RankId': 4
    },
    {
        'Id': 17,
        'Status': 'Testing',
        'Summary': 'Fix the issues reported in data binding.',
        'Type': 'Story',
        'Priority': 'Normal',
        'Tags': 'Databinding',
        'Estimate': '3.5',
        'Assignee': 'Janet Leverling',
        'RankId': 4
    },
    {
        'Id': 18,
        'Status': 'Close',
        'Summary': 'Analyze SQL server 2008 connection.',
        'Type': 'Story',
        'Priority': 'Release Breaker',
        'Tags': 'Grid,Sql',
        'Estimate': 2,
        'Assignee': 'Andrew Fuller',
        'RankId': 4
    },
    {
        'Id': 19,
        'Status': 'Validate',
        'Summary': 'Validate databinding issues.',
        'Type': 'Story',
        'Priority': 'Low',
        'Tags': 'Validation',
        'Estimate': 1.5,
        'Assignee': 'Margaret hamilt',
        'RankId': 1
    },
    {
        'Id': 20,
        'Status': 'Close',
        'Summary': 'Analyze grid control.',
        'Type': 'Story',
        'Priority': 'High',
        'Tags': 'Analyze',
        'Estimate': 2.5,
        'Assignee': 'Margaret hamilt',
        'RankId': 5
    },
    {
        'Id': 21,
        'Status': 'Close',
        'Summary': 'Stored procedure for initial data binding of the grid.',
        'Type': 'Others',
        'Priority': 'Release Breaker',
        'Tags': 'Databinding',
        'Estimate': 1.5,
        'Assignee': 'Steven walker',
        'RankId': 6
    },
    {
        'Id': 22,
        'Status': 'Close',
        'Summary': 'Analyze stored procedures.',
        'Type': 'Story',
        'Priority': 'Release Breaker',
        'Tags': 'Procedures',
        'Estimate': 5.5,
        'Assignee': 'Janet Leverling',
        'RankId': 7
    },
    {
        'Id': 23,
        'Status': 'Validate',
        'Summary': 'Validate editing issues.',
        'Type': 'Story',
        'Priority': 'Critical',
        'Tags': 'Editing',
        'Estimate': 1,
        'Assignee': 'Nancy Davloio',
        'RankId': 1
    },
    {
        'Id': 24,
        'Status': 'Testing',
        'Summary': 'Test editing functionality.',
        'Type': 'Story',
        'Priority': 'Normal',
        'Tags': 'Editing,Test',
        'Estimate': 0.5,
        'Assignee': 'Nancy Davloio',
        'RankId': 5
    },
    {
        'Id': 25,
        'Status': 'Open',
        'Summary': 'Enhance editing functionality.',
        'Type': 'Improvement',
        'Priority': 'Low',
        'Tags': 'Editing',
        'Estimate': 3.5,
        'Assignee': 'Andrew Fuller',
        'RankId': 5
    }
];