The selected item is always moving while i move my mouse after click...
i want to drag a item to another widget, but i found that the new Qt version is very weired here.
after i LeftMouseButtonDown, and then i move the mouse (up and down, even in another widget), the current Selected item is always changing while i move the mouse!!
i don't want this "new" effect. what i want is that as the old version, the selected item can be only changed while i click with left button.