I have a single TextInput field in my component and I want to
stop the tab key from advancing the focus when I have an error in
the field. I have tried using setFocus() and that seems to do it
although I lose the caret in the text input field. Also when I tab
I notice that even though I am telling the component that the next
focus is the TextInput field it still goes to the Internet Explorer
address bar. Any ideas?