How to restrict tab key handler event in gwt

问题

I am using GWT components for web page. In my page I used ten text boxes. I want to block "tab" key event for navigate one text box to another text box.

Expected Approach: If I pressed tab key it wont go to another text box.

回答1:

You can do somthing like this.

window.onkeydown = function() {
    if (event.keyCode == 9) {
        event.preventDefault();
    }
}

回答2:

Use NativePreviewEventHandler and use the logic mentioned by Mayank Pandya, which is

if (event.keyCode == 9) {
        event.preventDefault();
    }

Check for the Tabkey keycode. I am not sure about it.

来源：https://stackoverflow.com/questions/28063277/how-to-restrict-tab-key-handler-event-in-gwt