Change orientation of header text in EJ2 TypeScript Treegrid control

27 Apr 20236 minutes to read

You can change the orientation of the header text by using the customAttributes property.

Ensure the following steps:

Step 1:

Create a CSS class with orientation style for the treegrid header cell.

.orientationcss .e-headercelldiv {
    transform: rotate(90deg);
}

Step 2:

Add the custom CSS class to a particular column by using the customAttributes property.

    { field: 'taskName', headerText: 'Task Name', textAlign: 'Center', customAttributes: {class: 'orientationcss'}, width: 80 }

Step 3:

Resize the header cell height by using the following code.

function setHeaderHeight(args) {
    let textWidth: number = document.querySelector(".orientationcss > div").scrollWidth;//Obtain the width of the headerText content.
    let headerCell: NodeList = document.querySelectorAll(".e-headercell");
    for(let i: number = 0; i < headerCell.length; i++) {
        (<HTMLElement>headerCell.item(i)).style.height = textWidth + 'px'; //Assign the obtained textWidth as the height of the headerCell.
    }
}

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

    let treegrid: TreeGrid = new TreeGrid(
        {
            dataSource: sampleData,
            childMapping: "subtasks",
            treeColumnIndex: 1,
            height: 100,
            created: setHeaderHeight,
            columns: [
               { field: 'taskID', headerText: 'Task ID', width: 70, textAlign: 'Right' },
               { field: 'taskName', headerText: 'Task Name', textAlign: 'Center', customAttributes: {class: 'orientationcss'}, width: 80 }
               { field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date', format: 'yMd' },
               { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
            ]
            });
    treegrid.appendTo('#TreeGrid');

    function setHeaderHeight(args: ActionEventArgs): void {
   let textWidth: number = document.querySelector(".orientationcss > div").scrollWidth; // obtain the width of the headerText content.
    let headerCell: NodeList = document.querySelectorAll(".e-headercell");
    for (let i: number = 0; i < headerCell.length; i++) {
        (<HTMLElement>headerCell.item(i)).style.height = textWidth + 'px'; // assign the obtained textWidth as the height of the headerCell.
    }
}
<!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="https://cdn.syncfusion.com/ej2/23.2.4/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/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>
<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='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.