Can I create horizontal marker on grid and timeline while dragging task vertically
Hello Hajaj,
There is the marker if you enable vertical reorder in the marker mode:
https://docs.dhtmlx.com/gantt/api__gantt_order_branch_config.html
Here is an example:
https://docs.dhtmlx.com/gantt/samples/07_grid/14_branch_ordering_highlight.html
If you want to highlight the dragged row in the classic reorder mode, you can use the grid_row_class and task_row_class templates where you can return the class name for the rows. Then you can use that class name to highlight the row with CSS:
https://docs.dhtmlx.com/gantt/api__gantt_grid_row_class_template.html
https://docs.dhtmlx.com/gantt/api__gantt_task_row_class_template.html
Here is an example of how it might be implemented:
http://snippet.dhtmlx.com/5/6051f9d10