Hey,
I have a similar problem with DynaValidatorActionForm.
It says that invalid property when i have a ArrayList in the <form-property
name="searchList" type="java.util.ArrayList"/> in the <form-bean
declaration.
Any idea?
Thanks and your help is appreciated.
Silpa
hugh111111 wrote:
>
> I've got a problem relating to the validation of indexed properties in
> Struts 1.1
> I get the following error message when I try to access an ArrayList of
> students in my DynaValidatorForm
>
> root cause
>
> java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
> java.util.ArrayList.RangeCheck(Unknown Source)
> java.util.ArrayList.get(Unknown Source)
> org.apache.struts.action.DynaActionForm.get(DynaActionForm.java:298)
>
>
>
> Here is some background to the problem...
>
> In my session I have an ArrayList called studentsList of objects of type
> experiment.mybeans.Student. A Student object has getter and setter methods
> for id, year and gradeAverage.
>
> In my students.jsp I create a table by iterating through my student
> objects like this...
>
> <c:forEach var="students" items="${sessionScope.group.studentsList}" >
> <tr><td><html:text indexed="true" name="students" property="id"/></td>
> <td><html:text indexed="true" name="students" property="year"/></td>
> <td><html:text indexed="true" name="students"
> property="gradeAverage"/></td></tr>
> </c:forEach>
>
> As you can see the table contains empty text boxes and I would like to
> validate these have been filled in, so in struts-config.xml I create my
> dynavalidatorform as follows...
>
> <form-bean name="studentsForm"
> type="org.apache.struts.validator.DynaValidatorForm" >
> <form-property name="students" type="java.util.ArrayList" />
> </form-bean>
>
> And in validation.xml I place my validation rules...
>
> <form name="studentsForm">
> <field property="id" indexedListProperty="students" depends="required">
> <arg0 key="error.studentid.required"/>
> </field>
> <field property="year" indexedListProperty="students"
> depends="required">
> <arg0 key="error.studentyear.required"/>
> </field>
> <field property="gradeAverage" indexedListProperty="students"
> depends="required">
> <arg0 key="error.studentgrade.required"/>
> </field>
> </form>
>
> Now here is where things start to go a bit pear-shaped
>
> I have read somewhere online that I need to populate the form ArrayList
> before I get to my jsp page. So I have created an action class called
> PreStudentsAction.java which takes the student ArrayList out of the
> session and assigns it to the student ArrayList in the form before
> forwarding to the students.jsp page...
>
> public class PreStudentsAction extends Action{
>
> public ActionForward execute(ActionMapping mapping,
> ActionForm form,
> HttpServletRequest request,
> HttpServletResponse response)
> throws Exception
> {
>
> DynaValidatorForm myForm = (DynaValidatorForm)form;
> Group group = (Group)request.getSession().getAttribute("group");
> ArrayList<Student> students = group.getStudentsList();
>
> myForm.set("students", students);
> return (mapping.findForward("success"));
> }
>
> }
>
>
> Finally when I run my application my table is displayed but when I fill in
> the table and press submit I get the IndexOutOfBounds error. It appears to
> me that the student ArrayList in the form remains empty and that my Action
> class was unsuccessful in populating the form's ArrayList.
>
> Can anybody see what I'm doing wrong?
>
>
>
>
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