html5 - How to keep the multiple selected value in dropdown using jstl tags? -
//this jsp code......... <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <html> <head> <title>drop down</title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js"></script> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.9/jquery-ui.min.js"></script> <script type="text/javascript"> $(document).ready(function() { $("#delete").click(function(){ var d = []; $.each($("#delete option:selected"), function(){ d.push($(this).val()); }); var s=(d.join(", ")); console.log(s); $("#delete_empid").val(s); console.log($("#delete_empid").val()); }); }); </script> </head> <body> <div align="center"> <form:form method="post" action="${pagecontext.request.contextpath}/deletemultiple" modelattribute="employee"> <table> <tr> <td>first name :</td> <td><form:input path="firstname" /></td> </tr> <tr> <td>last name :</td> <td><form:input path="lastname" /></td> </tr> <tr> <td>emp_id :</td> <td><form:input path="emp_id" /></td> </tr> <tr> <td>email_id :</td> <td><form:input path="email_id"/></td> </tr> <tr> <td>phone_no :</td> <td><form:input path="phone_no"/></td> </tr> <tr> <td>city :</td> <td><form:input path="city"/></td> </tr> <tr> <td> </td> <td><input type="submit" value="search" /></td> </tr> </table> <input type= "hidden" id="delete_empid" name="delete_empid" /> </form:form> </div> <div align="center"> <h2 style="color:blue">selectbox:</h2> <form:form method="post" action="${pagecontext.request.contextpath}/deletemultipleempdetails"> <select id="delete" multiple name="employees"> <c:foreach items="${emplist}" var="employee"> <option value= "${employee.emp_id}" >${employee.firstname}</option> ${msg} </c:foreach> </select> <input type="submit" name="delete" value="delete"> </form:form> </div> <div> <h4 style="color:red">${message}</h4> </div> </body> </html> how keep value selected using jstl tags, without using javascript?
to keep multiple selected value, need add selected attribute respective <option> tag.
i thinking that, want add selected attribute based on condition, using <c:choose> tag.
try following code:
<select id="delete" multiple name="employees"> <c:foreach items="${emplist}" var="employee"> <c:choose> <c:when test="${some condition satisfies requirement }"> <option value= "${employee.emp_id}" selected="selected"> ${employee.firstname} </option> </c:when> <c:otherwise> <option value= "${employee.emp_id}" >${employee.firstname}</option> </c:otherwise> </c:choose> </c:foreach> </select>
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