EF Core Unlink / Detach Related Entity - One to Many

Question

I am trying to unlink my entity's relation to another entity (Task).

But my entity's relation is still remain in TaskID column.

How can i delete this TaskID value.

I am using entity framework core 2.2

Thanks in advance.

1. setting task null

2. task relation still remains

WorkHour workHourRecentCreated = workHourRepo.Get(workHourDb.ID);
workHourRecentCreated.Task = null;
workHourRepo.Edit(workHourRecentCreated);
workHourRepo.Save();

Answer 1

You might need to eager load the task in order for the change tracker to pick up the change.

If you have a taskID field, setting that to null should update the database properly.