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Customize column styles in JavaScript (ES5) TreeGrid control

22 Oct 2021 / 2 minutes to read

You can customise the appearance of the header and content of a particular column using the customAttributes property.

To customize the Tree Grid column, follow the given steps:

Step 1:

Create a CSS class with custom style to override the default style for rowcell and header cell.

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.e-treegrid .e-rowcell.customcss{
    background-color: #ecedee;
    color: 'red';
    font-family: 'Bell MT';
    font-size: 20px;
}

.e-treegrid .e-headercell.customcss{
    background-color: #2382c3;
    color: white;
    font-family: 'Bell MT';
    font-size: 20px;
}

Step 2:

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

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{ field: 'taskName', headerText: 'Task Name', customAttributes: {class: 'customcss'}, width: 100 },
Source
Preview
index.js
index.css
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var treegrid = new ej.treegrid.TreeGrid({
    dataSource: sampleData,
    childMapping: 'subtasks',
    treeColumnIndex: 1,
    height: 275,
    columns: [
       { field: 'taskID', headerText: 'Task ID', width: 70, textAlign: 'Right' },
       { field: 'taskName', headerText: 'Task Name', width: 200,customAttributes: { class: 'customcss' },  textAlign: 'Left' },
       { field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date', format: 'yMd' },
       { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' },
    ]
});
treegrid.appendTo('#TreeGrid');
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#container {
    visibility: hidden;
}

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

.e-treegrid .e-rowcell.customcss{
  background-color: grey;
  font-family: 'ALGERIAN';
	color: brown;
	font-size: 20px;
}

.e-treegrid .e-headercell.customcss{
  background-color: #2382c3;
  color: white;
	font-family: 'ALGERIAN';
	font-size: 20px;
}

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.