Multiple tasks in the same row

Hello Linh,
It is hard to suggest what might be wrong as I couldn’t reproduce the issue locally, and I don’t see your code.
Please, reproduce the issue in the snippet, then click on the “Share” button and send me the link:
https://snippet.dhtmlx.com/38ee1b370
Or send me an HTML file with all the necessary Javascript and CSS files.

can u share us the code. how to do this

Hello Epsi,
To display several tasks on the same row, you can use the Split Tasks feature:
https://docs.dhtmlx.com/gantt/desktop__split_tasks.html
Here are examples:
https://docs.dhtmlx.com/gantt/samples/04_customization/21_open_split_task.html
http://snippet.dhtmlx.com/99620af0e