CODEWITHSUNDEEP
jsfprimefacesdatalist
user3364181
user3364181

Reputation: 541

PrimeFaces p:dataList issues error "Property 'ime' not found on type java.lang.String"

I want to make Checkbox menu and display data in dataList. Here is my xhtml:

<h:form>
 <h:panelGrid columns="3" cellpadding="5">
    <h:outputLabel for="menu" value="Demonstratori :" />
    <p:selectCheckboxMenu id="menu" value="#{nastavnik.odabraniDemonstratori}" label="Demonstratori:"
                                  filter="true" filterMatchMode="startsWith" panelStyle="width:250px">
        <f:selectItems value="#{nastavnik.sviDemonstratori}" var="demons" itemLabel="#{demons.ime} #{demons.prezime}" itemValue="#{demons}" />
    </p:selectCheckboxMenu>
    <p:commandLink value="Submit" update="display" />
 </h:panelGrid>

    <p:outputPanel id="display" style="width:250px;padding-left:5px;margin-top:10px">
        <p:dataList value="#{nastavnik.odabraniDemonstratori}" var="d" type="ordered" emptyMessage="Nema odabranih demonstratora">
             #{d.ime}"
        </p:dataList>
   </p:outputPanel>
</h:form>

Here is important code from Nastavnik bean : 

private ArrayList<Demonstrator> odabraniDemonstratori;
public void setOdabraniDemonstratori(ArrayList<Demonstrator> odabraniDemonstratori) {
    this.odabraniDemonstratori = odabraniDemonstratori;
}


public ArrayList<Demonstrator> getOdabraniDemonstratori() {
    return odabraniDemonstratori;
}

Demonstrator bean has property ime. Everything works good, but when I try to show data in dataList with #{d.ime}, I am getting this error:

/unoslabvezbe.xhtml @84,49 value="#{d.ime}": Property 'ime' not found on type java.lang.String

d property is type Demonstrator not String. Any help ?

Upvotes: 0

Views: 762

Answers (1)

Mathieu Castets
Mathieu Castets

Reputation: 6040

When using a selection component (such as p:selectCheckboxMenu or p:pickList), you need a converter to handle complex (= not a simple String) Java objects as values of f:selectItems. A converter will serialize and deserialize your entity Demonstrator.

Therefore you need to add the converter attribute for your p:selectCheckboxMenu and reference your own converter, or even better, use the ready-to-use SelectItemsConverter (showcase link) provided by Omnifaces, a great utility library for JSF developers (installation is straightforward: add the .jar file or add a new dependency in Maven).

<p:selectCheckboxMenu id="menu" value="#{nastavnik.odabraniDemonstratori}" converter="omnifaces.SelectItemsConverter" label="Demonstratori:" filter="true" filterMatchMode="startsWith" panelStyle="width:250px">
    <f:selectItems value="#{nastavnik.sviDemonstratori}" var="demons" itemLabel="#{demons.ime} #{demons.prezime}" itemValue="#{demons}" />
</p:selectCheckboxMenu>

Note: To learn more about designing your own converter (not the way to go):

Upvotes: 2

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