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POcheckbox datatable primefaces doesn't working
 

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    <p>the checkbox datatable of primefaces library doesn't work for me, I tried to make the same code as the showcase of primefaces but when I check some rows and I click on the view button the selectedCars[] contains 0 rows : here is my xhtml page : </p> <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!-- To change this template, choose Tools | Templates and open the template in the editor. --&gt; &lt;!DOCTYPE html&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:p="http://primefaces.org/ui" xmlns:f="http://java.sun.com/jsf/core"&gt; &lt;h:head&gt; &lt;title&gt;TODO supply a title&lt;/title&gt; &lt;/h:head&gt; &lt;h:body&gt; &lt;h:form id="form"&gt; &lt;p:dataTable id="multiCars" var="car" value="#{fortest.mediumCarsModel}" paginator="true" rows="10" selection="#{fortest.selectedCars}"&gt; &lt;f:facet name="header"&gt; Checkbox Based Selection &lt;/f:facet&gt; &lt;p:column selectionMode="multiple" style="width:18px" /&gt; &lt;p:column headerText="id"&gt; #{car.id} &lt;/p:column&gt; &lt;p:column headerText="date envoi"&gt; #{car.dateEnvoi} &lt;/p:column&gt; &lt;p:column headerText="decision" &gt; #{car.decision} &lt;/p:column&gt; &lt;f:facet name="footer"&gt; &lt;p:commandButton id="multiViewButton" value="View" icon="ui-icon-search" update=":form:displayMulti" oncomplete="multiCarDialog.show()"/&gt; &lt;/f:facet&gt; &lt;/p:dataTable&gt; &lt;p:dialog id="multiDialog" header="Car Detail" widgetVar="multiCarDialog" height="300" showEffect="fade" hideEffect="explode"&gt; &lt;p:dataList id="displayMulti" value="#{fortest.selectedCars}" var="selectedCar"&gt; id : #{selectedCar.id}, dateEnvoi #{selectedCar.dateEnvoi} &lt;/p:dataList&gt; &lt;/p:dialog&gt; &lt;/h:form&gt; &lt;/h:body&gt; &lt;/html&gt; </code></pre> <p>and here is my managed-Bean : </p> <pre><code> @ManagedBean @SessionScoped public class fortest implements Serializable { private Commande[] selectedCars; private dortestDataModel mediumCarsModel; utilisateursHelper uh; /** * Creates a new instance of fortest */ public fortest() { uh = new utilisateursHelper(); mediumCarsModel = new dortestDataModel(uh.getAllCommandes()); } public void setSelectedCars(Commande[] selectedCars) { System.out.println("alors je suis donc la size : "+selectedCars.length); this.selectedCars = selectedCars; } public Commande[] getSelectedCars() { return selectedCars; } public dortestDataModel getMediumCarsModel() { return mediumCarsModel; } } </code></pre> <p>and here is my dataModel : </p> <pre><code> public class dortestDataModel extends ListDataModel&lt;Commande&gt; implements SelectableDataModel&lt;Commande&gt; { utilisateursHelper uh; public dortestDataModel() { } public dortestDataModel(List&lt;Commande&gt; data) { super(data); uh = new utilisateursHelper(); } @Override public Commande getRowData(String rowKey) { //In a real app, a more efficient way like a query by rowKey should be implemented to deal with huge data List&lt;Commande&gt; cars = (List&lt;Commande&gt;) uh.getAllCommandes(); for(Commande car : cars) { if(car.getId().equals(rowKey)) return car; } return null; } @Override public Object getRowKey(Commande car) { return car.getId(); } } </code></pre> <p>do you have any idea, thank you in advance</p>
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