I have some task which has only start_date.
Task A - start_date = “4-12-2018”, end_date = '", duration= 0
Now we want in gantt tasklist this task should show only start date and end_date and duration columns should be empty.
please refer screenshot.
if task is unscheduled or we it does not have its own start_date. end_date, duration. These 3 fields should be empty , but custom columns should have values filled.