CODEWITHSUNDEEP
javajsfprimefaces
Jonathan
Jonathan

Reputation: 3024

How to use PrimeFaces SelectOneMenu ItemLabel & ItemValue with Lists?

As far as im aware the correct way to display information in a SelectOneMenu is by having a list of objects and using it's properties like so:

<p:selectOneMenu id="player" value="">  
    <f:selectItem itemLabel="Select" itemValue="" />  
    <f:selectItems value="#{players}"
       var="player"
       itemLabel="#{player.name}"
       itemValue="#{player.id}"/> 
</p:selectOneMenu>

but what if I dont have a list of players, what if I have something like this? I'd like to get it to work like this:

//PlayerManager
public List<String> getPlayerNames() {
    String[] names = new String[] {"player1", "player2"};
    return Arrays.asList(names);
}

public List<String> getPlayerIds() {
   String[] ids = new String[] {"1", "2"};
   return Arrays.asList(ids);
}

<p:selectOneMenu id="player" value="">  
    <f:selectItem itemLabel="Select" itemValue="" />  
    <f:selectItems value="#{playerManager.playerNames}"
       var="player"
       itemLabel="#{playerManager.playerNames}"
       itemValue="#{playerManager.playerIds}"/> 
</p:selectOneMenu>

Upvotes: 2

Views: 20284

Answers (1)

BalusC
BalusC

Reputation: 1108632

Use <c:forEach> to generate <f:selectItem> components. You can use its varStatus attribute to get the current iteration index, so that you can get an item of the other list by index.

<c:forEach items="#{playerManager.playerIds}" var="playerId" varStatus="loop">
    <f:selectItem itemValue="#{playerId}" itemLabel="#{playerManager.playerNames[loop.index]}" />
</c:forEach>

Note that when the #{playerManager} is view scoped, this construct would then recreate the bean on every postback. See also JSTL in JSF2 Facelets... makes sense?

Upvotes: 7

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