How to disable the auto-select by keyboard of a SelectItem

[addy_hu]

For a select item, the user can type a starting letter to select the correspont item. But I want to disable this behavior, what I want is that the user cannot auto-select a tiem by typing letter. Is there any way to do so?
I tried to capture the behavior of typing letter by addKeyDownHandler, addKeyUpHandler,addKeyPressHandler, but none of them will be called after the letter is typed.

[Isomorphic]

This would make the control behave in a non-standard way and break accessibility, so we'd suggest you don't attempt this customization and solve your UI interaction goals in another way.