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Primefaces Cookbook Second Edition

You're reading from   Primefaces Cookbook Second Edition Over 100 practical recipes to learn PrimeFaces 5.x – the most popular JSF component library on the planet

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Product type Paperback
Published in May 2015
Publisher
ISBN-13 9781784393427
Length 412 pages
Edition 1st Edition
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Toc

Table of Contents (13) Chapters Close

Preface 1. Getting Started with PrimeFaces FREE CHAPTER 2. Theming Concepts 3. Enhanced Inputs and Selects 4. Grouping Content with Panels 5. Data Iteration Components 6. Endless Menu Variations 7. Working with Files, Images, and Multimedia 8. Drag Me, Drop Me 9. Creating Charts and Maps 10. Client-side Validation 11. Miscellaneous Advanced Use Cases Index

Resizing, reordering, and toggling columns in dataTable


The dataTable component offers enhanced features on its content, such as resizing of columns, reordering of rows and columns via drag and drop, and toggling of columns for visibility.

How to do it…

Resizing should be enabled by setting the resizableColumns attribute to true, as shown here:

<p:dataTable id="resizing" var="car" value="#{dataTableBean.cars}"
  resizableColumns="true">
  <p:column headerText="Year">
    <h:outputText value="#{car.year}" />
  </p:column>
  <p:column headerText="Name">
    <h:outputText value="#{car.name}" />
  </p:column>
</p:dataTable>

Note

After resizing, the state of the columns is preserved on the postback of a page via cookie-based persistence.

Reordering of rows and columns is possible with the draggableRows and draggableColumns attributes respectively. A sample definition is given here:

<p:dataTable value="#{dataTableBean.cars}" var="car"
  draggableRows...
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