Firemonkey - Combobox highlight item at mouse position

Question

Nearly every application will highlight a comboboxes' item at the current mouse position.

In Firemonkey Embarcadero changed this behavior.

Image1:

In this case ListBoxItem3 should be highlighted - but it isn't.

I then selected ListBoxItem2 and opened the combobox again.

Image2:

ListBoxItem2 keeps being selected even tho ListboxItem4 should be.

As you can see I was using TListBox Items in this example.

In the StyleBook I added a new StyleObject (a blue rectangle) with a TFloatAnimation so i could add a "fake" selection.

But it sadly didn't work.

Image3:

So here i am after spending quite some time trying to figure out how to select a comboboxes' item on mouse over movements.

Someone know a way to achieve this?

Answer 1

This is a new behaviour introduced by new versions (from X3 onwards), you can set DropDownKind = ddkCustom (default value ddkNative) for emulate old behavior.

Note that using Custom as DropDownKind you obtain a behaviour that it's slightly different from the previous one, since it sets the itemIndex property value immediately, but it shouldn't be a big problem ...