The documentation of GWT gives a pretty good overview about UI / server communication: https://developers.google.com/web-toolkit/doc/latest/DevGuide
For a widget overview you can take a look at the Showcase: http://gwt.google.com/samples/Showcase/Showcase.html#!CwCheckBox -- J. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/vYOIv0IF7BoJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.