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Row in JavaScript TreeGrid control

08 Aug 2022 / 9 minutes to read

The row represents record details fetched from data source.

Customize rows

You can customize the appearance of a row by using the rowDataBound event. The rowDataBound event triggers for every row. In the event handler, you can get the RowDataBoundEventArgs that contains details of the row.

Source

Preview

index.ts

index.css

index.html

import { TreeGrid, RowDataBoundEventArgs } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

let treeGridObj: TreeGrid = new TreeGrid({
    dataSource: sampleData,
    childMapping: 'subtasks',
    height: 275,
    treeColumnIndex: 1,
    rowDataBound: rowBound,
    enableHover: false,
    columns: [
                { field: 'taskID', headerText: 'Task ID', width: 90, textAlign: 'Right' },
                { field: 'taskName', headerText: 'Task Name', width: 180 },
                {
                    field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date',format: 'yMd'
                },
                { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
    ]
});

treeGridObj.appendTo('#TreeGrid');

function rowBound(args: RowDataBoundEventArgs) {
    if (args.data['duration'] == 0 ) {
        args.row.style.background= '#336c12';
    } else if (args.data['duration'] < 3) {
        args.row.style.background= '#7b2b1d';
    }
}

#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

<!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/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>

Styling alternate rows

You can change the treegrid’s alternative rows’ background color by overriding the .e-altrow class.

.e-treegrid .e-altrow {
    background-color: #fafafa;
}

Please refer to the following example.

Source

Preview

index.ts

index.html

import { TreeGrid, RowDataBoundEventArgs } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

let treeGridObj: TreeGrid = new TreeGrid({
    dataSource: sampleData,
    childMapping: 'subtasks',
    height: 275,
    treeColumnIndex: 1,
    enableHover: false,
    columns: [
                { field: 'taskID', headerText: 'Task ID', width: 90, textAlign: 'Right' },
                { field: 'taskName', headerText: 'Task Name', width: 180 },
                {
                    field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date',format: 'yMd'
                },
                { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
    ]
});

treeGridObj.appendTo('#TreeGrid');

<!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/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>

Row height

You can customize the row height of treegrid rows through the rowHeight property. The rowHeight property is used to change the row height of entire treegrid rows.

In the below example, the rowHeight is set as ‘60px’.

Source

Preview

index.ts

index.css

index.html

import { TreeGrid } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

let treeGridObj: TreeGrid = new TreeGrid({
    dataSource: sampleData,
    childMapping: 'subtasks',
    height: 275,
    rowHeight: 60,
    treeColumnIndex: 1,
    columns: [
                { field: 'taskID', headerText: 'Task ID', width: 90, textAlign: 'Right' },
                { field: 'taskName', headerText: 'Task Name', width: 180 },
                {
                    field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date',format: 'yMd'
                },
                { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
    ]
});

treeGridObj.appendTo('#TreeGrid');

#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

<!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/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>

Customize row height for particular row

Grid row height for particular row can be customized using the rowDataBound event by setting the rowHeight in arguments for each row based on the requirement.

In the below example, the row height for the row with Task ID as ‘3’ is set as ‘90px’ using the rowDataBound event.

Source

Preview

index.ts

index.css

index.html

import { TreeGrid, RowDataBoundEventArgs } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

let treeGridObj: TreeGrid = new TreeGrid({
    dataSource: sampleData,
    childMapping: 'subtasks',
    height: 275,
    rowDataBound: rowBound,
    treeColumnIndex: 1,
    columns: [
                { field: 'taskID', headerText: 'Task ID', width: 90, textAlign: 'Right' },
                { field: 'taskName', headerText: 'Task Name', width: 180 },
                {
                    field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date',format: 'yMd'
                },
                { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
    ]
});

treeGridObj.appendTo('#TreeGrid');

function rowBound(args: RowDataBoundEventArgs) {
    if((args.data as TasKDetails).taskID === 3){
        args.rowHeight = 90;
    }
}

interface TasKDetails {
    taskID ?: number;
}

#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

<!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/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>

Row template

The rowTemplate has an option to customise the look and behavior of the treegrid rows. The rowTemplate property accepts either the template string or HTML element ID.

Source

Preview

index.ts

index.css

index.html

import { TreeGrid } from '@syncfusion/ej2-treegrid';
import { textdata } from './datasource.ts';

    let treegrid: TreeGrid = new TreeGrid(
        {
            dataSource: textdata,
            childMapping: 'Children',
            treeColumnIndex: 0,
            rowTemplate: '#rowtemplate',
            height: 250,
            width: 'auto',
            rowHeight: 83,
            columns: [
                { field: 'EmpID', headerText: 'Employee ID', width: '150' },
                { field: 'Name', headerText: 'Employee Name', width: '150' },
                { field: 'Address', headerText: 'Employee Details', width: '350' }
            ]
        });
    treegrid.appendTo('#TreeGrid');

.border {
    border-color: #e0e0e0;
    border: 1px solid #e0e0e0;
    border-width: 1px 0 0 0;
}

img {
    width: 60px;
    height: 60px;
    vertical-align: baseline;
    border-radius: 50px;
    margin-left: 20px;
    background-repeat: no-repeat;

}

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 TreeGrid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript TreeGrid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>
        <script id="rowtemplate" type="text/x-template" >

            <tr>
                <td class="border" style='padding-left:18px;' >
                    <div>${EmpID}</div>
                </td>
                <td class="border" style='padding: 10px 0px 0px 20px;'>
                    <div style="font-size:14px;">
                       ${Name}
                        <p style="font-size:9px;">${Designation}</p>
                    </div>
                </td>
                <td class="border">
                    <div>
                        <div style="position:relative;display:inline-block;">
                           <img src="${FullName}.png" alt="${FullName}" />
                        </div>
                        <div style="display:inline-block;">
                            <div style="padding:5px;">${Address}</div>
                            <div style="padding:5px;">${Country}</div>
                            <div style="padding:5px;font-size:12px;">${Contact}</div>
                        </div>
                    </div>
                </td>
        
            </tr>
        </script>
        <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='TreeGrid'></div>
    </div>
</body>
</html>

The rowTemplate property accepts only the TR element.

Row template with formatting

If the rowTemplate is used, the value cannot be formatted inside the template using the columns.format property. In that case, a function should be defined globally to format the value and invoke it inside the template.

Source

Preview

index.ts

index.css

index.html

import { TreeGrid } from '@syncfusion/ej2-treegrid';
import { textdata } from './datasource.ts';
import { Internationalization } from '@syncfusion/ej2-base';

let instance: Internationalization = new Internationalization();

(window as DateFormat).format = (value: Date) => {
    return instance.formatDate(value, { skeleton: 'yMd', type: 'date' });
};

interface DateFormat extends Window {
    format?: Function;
}

    let treegrid: TreeGrid = new TreeGrid(
        {
            dataSource: textdata,
            childMapping: 'Children',
            treeColumnIndex: 0,
            rowTemplate: '#rowtemplate',
            height: 250,
            width: 'auto',
            rowHeight: 83,
            columns: [
                { field: 'EmpID', headerText: 'Employee ID', width: '150' },
                { field: 'Address', headerText: 'Employee Details', width: '350' },
                { field: 'DOB', headerText: 'DOB', width: '150' }
            ]
        });
    treegrid.appendTo('#TreeGrid');

.border {
    border-color: #e0e0e0;
    border: 1px solid #e0e0e0;
    border-width: 1px 0 0 0;
}

img {
    width: 60px;
    height: 60px;
    vertical-align: baseline;
    border-radius: 50px;
    margin-left: 20px;
    background-repeat: no-repeat;

}

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 TreeGrid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript TreeGrid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>
        <script id="rowtemplate" type="text/x-template" >

            <tr>
                <td class="border" style='padding-left:18px;' >
                    <div>${EmpID}</div>
                </td>
                <td class="border">
                    <div>
                        <div style="position:relative;display:inline-block;">
                           <img src="${FullName}.png" alt="${FullName}" />
                        </div>
                        <div style="display:inline-block;">
                            <div style="padding:5px;">${Address}</div>
                            <div style="padding:5px;">${Country}</div>
                            <div style="padding:5px;font-size:12px;">${Contact}</div>
                        </div>
                    </div>
                </td>
                <td class="border" style='padding-left: 20px;'>
                    <div>${format(data.DOB)}</div>
                </td>
        
            </tr>
        </script>
        <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='TreeGrid'></div>
    </div>
</body>
</html>

Limitations

Row template feature is not compatible with all the features which are available in treegrid and it has limited features support. Here we have listed out the features which are not compatible with row template feature.

Filtering
Paging
Sorting
Scrolling
Searching
Rtl
Context Menu
State Persistence

Detail template

The detail template provides additional information about a particular row. By expanding the parent row the child rows are expanded along with their detail template. The detailTemplate property accepts either the template string or HTML element ID.

To use detail template, inject the DetailRow module in the TreeGrid.

Source

Preview

index.ts

index.html

import { TreeGrid, DetailRow } from '@syncfusion/ej2-treegrid';
import { textdata } from './datasource.ts';
import { Internationalization } from '@syncfusion/ej2-base';

TreeGrid.Inject(DetailRow);

let instance: Internationalization = new Internationalization();

(window as DateFormat).format = (value: Date) => {
return instance.formatDate(value, { skeleton: 'yMd', type: 'date' });
};

interface DateFormat extends Window {
format?: Function;
}

let treegrid: TreeGrid = new TreeGrid(
    {
        dataSource: textdata,
        childMapping: 'Children',
        treeColumnIndex: 0,
        detailTemplate: '#detailtemplate',
        width: 'auto',
        columns: [
            { field: 'Name', headerText: 'First Name', width: '170' },
            { field: 'Designation', headerText: 'Designation', width: '180' },
            { field: 'EmpID', headerText: 'EmployeeID', width: '110'},
            { field: 'Country', headerText: 'Country' , width: '90'},
        ]
    });
treegrid.appendTo('#TreeGrid');

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 TreeGrid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript TreeGrid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>
    <script id="detailtemplate" type="text/x-template">

            <div style="position: relative; display: inline-block; float: left; font-weight: bold; width: 10%;padding:5px 4px 2px 27px;;">
                <img src="${FullName}.png" alt="${FullName}"/>
            </div>
            <div style="padding-left: 10px; display: inline-block; width: 66%; text-wrap: normal;font-size:13px;font-family:'Segoe UI';">
                <div class="e-description" style="word-wrap: break-word;">
                    <b>${Name}</b> was born on ${format(data.DOB)}. Now lives at ${Address}, ${Country}. ${Name} holds a position of <b>${Designation}</b> in our WA department, (Seattle USA).
                </div>
                <div class="e-description" style="word-wrap: break-word;margin-top:5px;">
                    <b style="margin-right:10px;">Contact:</b>${Contact}
                </div>
            </div>
        </script>
    <div class="loader">
        <div class="container">
            <div id="TreeGrid">
            </div>
        </div>
    </div>
</body>

</html>

Drag and drop

The TreeGrid rows can be reordered, dropped to another TreeGrid or custom control by enabling the allowRowDragAndDrop to true.

To use row drag and drop, inject the RowDD module in the TreeGrid.

Drag and drop within TreeGrid

The TreeGrid row drag and drop allows you to drag and drop TreeGrid rows on the same TreeGrid using drag icon. To enable row drag and drop, set the allowRowDragAndDrop to true. It provides the way to drop the row above, below or child to the target row with respective to the target row position.

Source

Preview

index.ts

index.html

import { TreeGrid, RowDD } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

TreeGrid.Inject(RowDD);

let treegrid: TreeGrid = new TreeGrid({
dataSource: sampleData,
treeColumnIndex: 1,
childMapping: 'subtasks',
allowRowDragAndDrop: true,
heigth:300,
selectionSettings: { type: 'Multiple' },
columns: [
        { field: 'taskID', headerText: 'Task ID', isPrimaryKey: true, width: 90, textAlign: 'Right' },
        { field: 'taskName', headerText: 'Task Name', width: 180 },
        {
            field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date',format: 'yMd'
        },
        { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
]
});
treegrid.appendTo('#TreeGrid');

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 TreeGrid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript TreeGrid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>

Selection feature must be enabled for row drag and drop.

For multiple row selection, the type property must be set to multiple.

Drag and drop to another TreeGrid

To drag and drop between two TreeGrid, enable the allowRowDragAndDrop property and specify the target TreeGrid ID in targetID property of rowDropSettings.

Source

Preview

index.ts

index.html

import { TreeGrid, RowDD } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

TreeGrid.Inject(RowDD);

let treegrid: TreeGrid = new TreeGrid({
dataSource: sampleData,
treeColumnIndex: 1,
childMapping: 'subtasks',
allowRowDragAndDrop: true,
rowDropSettings: { targetID: 'destTree' },
selectionSettings: { type: 'Multiple' },
columns: [
        { field: 'taskID', headerText: 'Task ID', isPrimaryKey: true, width: 90, textAlign: 'Right' },
        { field: 'taskName', headerText: 'Task Name', width: 180 },
        {
            field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date',format: 'yMd'
        },
        { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
]
});
treegrid.appendTo('#TreeGrid');

let destTree: TreeGrid = new TreeGrid({
dataSource: [],
treeColumnIndex: 1,
childMapping: 'subtasks',
allowRowDragAndDrop: true,
rowDropSettings: { targetID: 'TreeGrid' },
selectionSettings: { type: 'Multiple' },
columns: [
        { field: 'taskID', headerText: 'Task ID', isPrimaryKey: true, width: 90, textAlign: 'Right' },
        { field: 'taskName', headerText: 'Task Name', width: 180 },
        {
            field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date',format: 'yMd'
        },
        { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
]
});
destTree.appendTo('#destTree');

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 TreeGrid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript TreeGrid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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 >
            <div style="float: left;  width:49%" id="TreeGrid"></div>
            <div style="float: right; width:49%" id="destTree"></div>
        </div>           
    </div>
</body>
</html>

Drag and drop events

The following events are triggered while drag and drop the treegrid rows.

rowDragStartHelper - Triggers when click the drag icon or treegrid row and this event is used to customize the drag element based on user criteria.
rowDragStart -Triggers when starts to drag the treegrid row.
rowDrag - Triggers while dragging the treegrid row.
rowDrop - Triggers when a drag element is dropped on the target element.

Prevent reordering a row as child to another row

You can prevent the default behavior of dropping rows as children to the target by setting the cancel property to true in rowDrop event argument. You can also change the drop position after cancelling using reorderRows method.

In the below example drop action is cancelled and dropped above to target row.

Source

Preview

index.ts

index.html

import { TreeGrid, RowDD } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

TreeGrid.Inject(RowDD);

let treegrid: TreeGrid = new TreeGrid({
dataSource: sampleData,
treeColumnIndex: 1,
childMapping: 'subtasks',
allowRowDragAndDrop: true,
heigth:300,
columns: [
        { field: 'taskID', headerText: 'Task ID', isPrimaryKey: true, width: 90, textAlign: 'Right' },
        { field: 'taskName', headerText: 'Task Name', width: 180 },
        {
            field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date',format: 'yMd'
        },
        { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
],
rowDrop : (args) => {
 if (args.dropPosition == 'middleSegment') {
  args.cancel = true;
  treegrid.reorderRows([args.fromIndex], args.dropIndex, 'above');
 }
}
});
treegrid.appendTo('#TreeGrid');

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 TreeGrid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript TreeGrid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.2.43/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.2.43/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>

You can refer to our JavaScript Tree Grid feature tour page for its groundbreaking feature representations. You can also explore our JavaScript Tree Grid example JavaScript Tree Grid example to knows how to present and manipulate data.

Contents

Customize rows
Styling alternate rows
Row height
Customize row height for particular row
Row template
Row template with formatting
Limitations
Detail template
Drag and drop
Drag and drop within TreeGrid
Drag and drop to another TreeGrid
Drag and drop events
Prevent reordering a row as child to another row

Contents

Customize rows
Styling alternate rows
Row height
Customize row height for particular row
Row template
Row template with formatting
Limitations
Detail template
Drag and drop
Drag and drop within TreeGrid
Drag and drop to another TreeGrid
Drag and drop events
Prevent reordering a row as child to another row

Please provide additional information

Thank you for your feedback and comments.We will rectify this as soon as possible!