how to add tooltip on the entries and NOT on the combo in JFace ComboViewer

Question

I am loading my ComboViewer with over one thousand elements.

Some elements are longer than the width of underlying combo.

I want to

Answer 1

If you are using a ComboViewer and you provide your own CCombo instance, you can get children of the CCombo and one of them should be a List control that it shows as a dropdown menu. You can add your MouseTrackListener to this List control and show tooltip depending on which item the mouse is hovering.