I have "ajaxish" javascript code working by row in a displaytag table.
Here's my code, though it has some proprietary tag code in it too. But
it should help:
<display:column headerClass="data" class="data_left" title="Student
Name">
<div id="name_${row.id}">
<c:choose>
<c:when test="${empty matches[row.id]}">
<premis:comboBox
name="examStudent_${row.id}"
items="${missingExam}"
onchange="studentChanged(this);"/>
</c:when>
<c:otherwise>
<input
type="hidden"
name="student_${row.id}"
value="${(matches[row.id]).id}"/>
${(matches[row.id]).person.name.formatted}
</c:otherwise>
</c:choose>
</div>
</display:column>
The magic here is that each row has a combobox called "examStudent_XXX"
where XXX is the id of the record, the onchange event calls a javascript
function "studentChanged" that takes the value of the selected combobox
row.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
tstronge
Sent: Tuesday, November 20, 2007 9:45 AM
To: displaytag-user@lists.sourceforge.net
Subject: Re: [displaytag-user] Using Link on Column to populate fields
(plural!) in parent screen
I got a bit carried away with enthusiasm ;-(
What I got it to work yesterday only had one row in the table (the
single
thus last row in the table!). However, on trying it with multiple rows
in
the table I realised that I cannot get at the correct row object.
My
tstronge wrote:
>
> String fieldValue = evaluate(listObjFieldName,
> ctxt.getAttribute("tableRow")).toString();
>
doesn't work because ctxt.getAttribute("tableRow") gives me the item in
the
last row of the table and not the item that's being selected by the user
clicking on the link.
So I'm back to square 1
- I can't use a TableDecorator as I don't know the column name up front
to
write a getSomeColumnName() method in the table decorator
- I can't use a ColumnDecorator as I can't access values other than the
column in question
Any help really appreciated on this as I am losing hairs by the hour!!
My latest (failed!) attempt has
> public Object decorate(Object columnValue, PageContext ctxt,
> MediaTypeEnum mt) throws DecoratorException {
> String returnAssignmentsStr = "";
>
> String[] returnValueAssignmentPairs = (String[])
> ctxt.getAttribute("returnValueAssignmentPairs");
>
> for (int i = 0; i < returnValueAssignmentPairs.length; i++) {
> String parentObjFieldName =
> returnValueAssignmentPairs[i].split("=")[0];
> String listObjFieldName =
> returnValueAssignmentPairs[i].split("=")[1];
>
> String fieldValue = evaluate(listObjFieldName,
> ctxt.getAttribute("selection")).toString();
>
> returnAssignmentsStr = returnAssignmentsStr + parentObjFieldName
+
> "=" + fieldValue;
> if (i < returnValueAssignmentPairs.length - 1) {
> returnAssignmentsStr += ";";
> }
> }
>
> return "<a href=\"#\" class=\"DATA-LINK\"
> onclick=\"javascript:populate_parent('" + returnAssignmentsStr +
> "')\">"
> + columnValue.toString() + "</a>";
> }
>
in the ColumnDecorator and
> <display:column media="html"
> property="${columnName}"
> .... blah ....
>
decorator="com.XXXX.XXXX.XX.web.decorator.ReturnValueLinkColumnDecorator
"
> >
> </display:column>
>
in the JSP
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21%29-in-parent-screen-tf4811614.html#a13858332
Sent from the DisplayTag - General mailing list archive at Nabble.com.
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