Example of Header Template in ASP.NET Core Gantt Chart Control
This sample demonstrates the Gantt header template feature. In this sample, custom icons are displayed in the column headers.
DEMO
SOURCE
The Gantt provides a way to define a custom element in the header element. The columns -> headerTemplate property accepts either string or HTML element`s ID value,
which will be used as the template for the header cell.
In this demo, we have rendered the customized template for all column headers.
More information about the header template can be found in documentation section.