populating a jsp based on only certain values in the list

Question

I have a list populated from my xml. This contains set of values say A,B,C,D and E. I am using this list to come up in my drop down menu in the JSP. Is there anyway where in i can make only A,B,C and D populate in the drop down and not 'E' without modifying the xml?

  <% List services = AccountingCRCWrapper.getInstance().getServicesList();%>
            <td width="60%"class="value">
            <select name ="service"  id="service">
            <%if (services!=null && services.size()>0){
                 LabelValueBean service = null;
                 String value = "";
                 String text   = "";

                    for (int i=0; i<services.size(); i++){

                        String Selected = "";
                        service = (LabelValueBean)services.get(i);
                         value  = service.getLabel();
                         text   = service.getValue();
                         if (value.equalsIgnoreCase(AccountingConstants.IWF_SERVICE)){
                            Selected = "selected";
                         }
                            if(value.equalsIgnoreCase("b2b_analytics_si"){
                                continue;
                            }

                %>
            <option value="<%=value%>" <%=Selected%> ><%=text%></option>
            <%} }%>
            </select>
            </td>
          </tr>

Yes, you can hide the value(s) based on condition, but the *questions without a clear problem statement are not useful to other readers*. See: [**How to create a Minimal, Complete, and Verifiable example**](http://stackoverflow.com/help/mcve) — Vinoth Krishnan, May 02 '16 at 09:39
<% List services = AccountingCRCWrapper.getInstance().getServicesList();%> — Ramya A Dixit, May 02 '16 at 11:01
Using scriptlet in the JSP is awful, populate the model in the controller and apply the filter there. — Lluis Martinez, May 02 '16 at 11:11

score 0 · Answer 1 · edited May 23 '17 at 10:33

0

For a note, Scriptlet tag in jsp file is discouraged. See BalusC Answer - How to avoid Java code in JSP files?

You should add one more if condition before displaying the options

<% if(!value.equalsIgnoreCase("value_to_be_hide"){%>
     <option value="<%=value%>" <%=Selected%> ><%=text%></option>
<%}%>

edited May 23 '17 at 10:33

Community

1
1

answered May 02 '16 at 11:26

Vinoth Krishnan

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score 0 · Answer 2 · answered May 02 '16 at 11:40

you can hide any rows using C:if tag available in core library

Here is the example code:

<form:select path="comboBox">
    <form:option value="-1">&nbsp;</form:option>
    <c:forEach var="val" begin="1" end="12">
        <c:if test="${val < 10}">
            <c:set var="val" value="0${val}"></c:set>
        </c:if>
        <form:option value="${val}">${val}</form:option>
    </c:forEach>
</form:select>

populating a jsp based on only certain values in the list

2 Answers2