Search results

Custom tooltip for columns in JavaScript TreeGrid control

22 Jul 2021 / 1 minute to read

You can show the tooltip content in Tree Grid using [queryCellInfo] event of Tree Grid.

In the below demo, hover over the cell shows the tooltip content .

Source
Preview
index.ts
index.css
index.html
Copied to clipboard
import { TreeGrid, Page,QueryCellInfoEventArgs } from '@syncfusion/ej2-treegrid';
import { Tooltip } from '@syncfusion/ej2-popups';
import { sampleData } from './datasource.ts';

TreeGrid.Inject(Page);

    let treegrid: TreeGrid = new TreeGrid(
        {
            dataSource: sampleData,
            childMapping: 'subtasks',
            allowPaging: true,
            queryCellInfo: tooltip,
            pageSettings: {pageSize: 10},
            treeColumnIndex: 1,
            columns: [
                { field: 'taskID', headerText: 'Task ID', width: 70, textAlign: 'Right' },
                { field: 'taskName', headerText: 'Task Name', width: 200, textAlign: 'Left' },
                { field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date', format: 'yMd' },
                { field: 'endDate', headerText: 'End Date', width: 90, textAlign: 'Right', type: 'date', format: 'yMd' },
                { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' },
                { field: 'priority', headerText: 'Priority', width: 90 }
            ]  
        });
    treegrid.appendTo('#TreeGrid');

    function tooltip(args: QueryCellInfoEventArgs): void { // event triggers on every cell render.
    let tooltip: Tooltip = new Tooltip({
        content: args.data[args.column.field].toString() // add Essential JS2 tooltip for every cell.
    }, <HTMLElement>args.cell);
}
Copied to clipboard
#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}
Copied to clipboard
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <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-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-treegrid/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-popups/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-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/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-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='TreeGrid'></div>        
    </div>
</body>
</html>