JavaScript/jQuery Lookup - Keyboard Support

An end user can use the following keys to interact with the UI component.

Key Action
Alt + ↓ Opens the drop-down menu.
Enter or Space If the drop-down menu is closed, opens it; otherwise selects the current item.
Esc Closes the drop-down menu.
↑ / ↓ If the drop-down menu is opened, moves focus to the previous/next item.
Tab / Shift + Tab If the drop-down menu is opened, moves focus to the list / search field.
Page Up / Page Down Moves focus to the first/last menu item on the page.
Home / End Moves focus to the first/last menu item.

You can implement a custom handler for a key using the registerKeyHandler(key, handler) method.

JavaScript
  • function registerKeyHandlers () {
  • const lookup = $("#lookupContainer").dxLookup("instance");
  • lookup.registerKeyHandler("backspace", function(e) {
  • // The argument "e" contains information on the event
  • });
  • lookup.registerKeyHandler("space", function(e) {
  • // ...
  • });
  • }
See Also