Question

13

Is possible : javascript extract value from c:forEach tag?

rated 0 times [ 16] [ 3] / answers: 1 / hits: 20045 / 14 Years ago, wed, december 22, 2010, 12:00:00

i have populate some values using c:forEach tag. I want to get those values in my javascript.

If I click GetCtag value button, then i want to read from (c:forEach) values in javascript.

Is any other-way to retrieve the c:forEach tag value

<%@page contentType=text/html pageEncoding=UTF-8%>

<%@ taglib uri=http://java.sun.com/jsf/html prefix=h %>

<%@ taglib uri=http://java.sun.com/jsf/core prefix=f %>

<%@ taglib uri=http://richfaces.org/a4j prefix=a4j%>    

<%@taglib prefix=c uri=http://java.sun.com/jsp/jstl/core %>



<!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN

http://www.w3.org/TR/html4/loose.dtd>



<f:view>

<html>

    <head>

        <meta http-equiv=Content-Type content=text/html; charset=UTF-8>



       <script type=text/javascript> 



       function getCTagValue(ctagObject)

       {

          alert(CFor Each Tag Object Value:  + ctagObject);

          // Here i want write code for retrieve the c:forEach tag value   

       }



</script>

</head>

    <body>

        <h:form id=cTagForm >               



            <c:forEach items=${cTagBean.tagList} var=ctag>

                <c:out value=${ctag.name} : />

                <c:out value=${ctag.age}/></br>

            </c:forEach>



            <a4j:commandButton id=GetCtagId  value=GetCtag oncomplete=getCTagValue('#{cTagBean.tagList}')/>



        </h:form>

    </body>

</html>

Help me.
Thanks in advance.

Answers

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aidanl

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1 Year ago

answered 14 Years ago minab · Accepted Answer

Just print it in JavaScript syntax instead of HTML syntax.

<script>

    var data = {

        <c:forEach items=${cTagBean.tagList} var=ctag varStatus=loop>

            '${ctag.name}': ${ctag.age}${!loop.last ? ',' : ''}

        </c:forEach>

    };

</script>

So that it end up as valid JavaScript object (assuming that name returns String and age returns Number):

<script>

    var data = {

        'foo': 10,

        'bar': 5,

        'waa': 20

    };

</script>