Multi-row update with nested beans (Lab AA spoiler)

While doing Lab3 AA (dot notation), I had some problems getting
multi-row update to work on the taskListMR page after I nested the tasks
inside a project.  I only have one question at the end, but I thought I
would post my journey in case it would be helpful to other students.

Note: this post is a spoiler, so if you haven't done Lab AA, then I
wouldn't read it.  By the way, I highly recommend this lab.  It forced
me to a much greater understanding of what is going on.

After Lab 2, my MRTaskList.jsp looked something like this.  The formBean
(fb) was a TaskBean.

	<c:forEach var="row" items="${fb}">
	<tr>
		<td>
			<c:url value="taskEdit" var ="url">
				<c:param name="ID" value="${row.id}"/>
            		<c:param name="Dispatch" value="Edit"/>
			</c:url>
			<a href ='<c:out value="${url}"/>' > 
				<fmt:message key="button.edit"
bundle="${loc}"/>
			</a>
		</td>
		<td>
			<html:text styleClass="form" property="name"
size="20" name="row" indexed="true"/>
		</td>
	</tr>
	</c:forEach>

After nesting, the formBean (fb) became a ProjectBean with tasks.
Accordingly, I changed the <c:forEach> to be:

	<c:forEach var="row" items="${fb.tasks.displayList}">

This, of course, didn't work, so I changed the var to "tasks".  This
gave me this:

	<c:forEach var="tasks" items="${fb.tasks.displayList}">
	<tr>
		<td>
			<c:url value="taskEdit" var ="url">
				<c:param name="ID" value="${tasks.id}"/>
            		<c:param name="Dispatch" value="Edit"/>
etc.

This didn't work either, so I changed it to
 
	<c:forEach var="tasks.row" items="${fb.tasks.displayList}">

At first, I didn't understand why this helped.  Now, I do.  This really
helped me to understand.
 
Unfortunately, I still had a problem with my "Edit" URL.  It wasn't
populating the ID.  Everything else worked.  I tried many variations
such as:

	<c:param name="ID" value="${tasks.row.id}"/>

I guess this doesn't work because "tasks.row" is not a valid variable
name.  

Eventually, I got it working by using <bean:write>, as follows:

	<c:param name="ID">
		<bean:write name="tasks.row" property="id"/>
	</c:param>

Given that we should avoid the bean tags in favor of JSTL, is there any
way to do this without using <bean:write>?

Thanks for any thoughts.

--Doug