如何在GWT中获取父类

Question

I have a StudentDashboard.java which contains multiple Student.java panels(rows). In each row, I have an ellipsis which pops-up OptionMenu.java (panel).

In OptionMenu.java , I have a remove link which deletes a student from the Db, so on UI, I also want to remove corresponding Student.java panel(row) from the dashboard.

The delete logic is in OptionMenu.java . How can I get corresponding Student.java reference in OptionMenu.java ? So that I can do something like student.removeFromParent() .

Whether delete method should be part of OptionMenu or Student class?

Answer 1

If your Studen.java inherit vom the GWT Panel. you can use getParent() which will return the parent Widget that your Studen is attached to.