Book Image

Vaadin 7 UI Design By Example: Beginner's Guide

Book Image

Vaadin 7 UI Design By Example: Beginner's Guide

Overview of this book

Vaadin is a mature, open-source, and powerful Java framework used to build modern web applications in plain Java. Vaadin brings back the fun of programming UI interfaces to the web universe. No HTML, no CSS, no JavaScript, no XML. Vaadin lets you implement web user interfaces using an object oriented model, similar to desktop technologies such as Swing and AWT. Vaadin 7 UI Design By Example: Beginner's Guide is an engaging guide that will teach you how to develop web applications in minutes. With this book, you will Develop useful applications and learn basics of Java web development. By the end of the book you will be able to build Java web applications that look fantastic. The book begins with simple examples using the most common Vaadin UI components and quickly move towards more complex applications as components are introduced chapter-by-chapter. Vaadin 7 UI Design By Example: Beginner's Guide shows you how to use Eclipse, Netbeans, and Maven to create Vaadin projects. It then demonstrates how to use labels, text fields, buttons, and other input components. Once you get a grasp of the basic usage of Vaadin, the book explains Vaadin theory to prepare you for the rest of the trip that will enhance your knowledge of Vaadin UI components and customization techniques.
Table of Contents (17 chapters)
Vaadin 7 UI Design By Example Beginner's Guide
About the Author
About the Reviewers

Collapsing and reordering columns

You can allow users to hide or show columns at runtime. All you have to do is to enable column collapsing:


That will render a little menu to play with columns' visibility as shown in the next screenshot:

If you want to disable column collapsing for a certain column, you can do something similar to the following code snippet:

    table.setColumnCollapsible("A + B", false);


You have to call table.setColumnCollapsingAllowed(true); when you want some columns to be noncollapsible. If you don't make this call, the menu showing the columns won't be rendered. You can use the setColumnCollapsed method to programmatically collapse a column. For example, if we wanted to collapse the A column of our previous example, we could do this by calling:

table.setColumnCollapsed("A", true);

Have a go hero – activate column reordering powers

Users can reorder the columns in tables. Just enable that feature: