Ashish Kulkarni wrote the following on 1/11/2006 11:08 AM:
Hi
I am a bit confused about using <html:select> and
<html:optionCollection> tag
I hate that optionsCollection tag:) I think the naming of the attributes
is confusing. I prefer using html:select and using html:option withing a
JSTL forEach loop. Slightly more verbose than optionsCollection, but I
find it easy to understand. As an example:
<html:select property="departmentId">
<c:forEach var="dept" items="${departments}">
<html:option value="${dept.id}">
<c:out value="${dept.description}"/>
</html:option>
</c:forEach>
</html:select>
Suppose i have defined following in struts-config.xml
file
<form-bean name="viewlinephase"
type="org.apache.struts.action.DynaActionForm">
<form-property name="selectedView"
type="java.lang.String" />
<form-property name="viewNames"
type="java.util.Vector" />
</form-bean>
I have a bean where in i have get and set method for
name and desctiption, suppose the bean is called
MyBean and viewNames vector is populated by MyBean
class
How do i define it in jsp page,
what i want is some thing like this in html page
<SELECT name="selectedView" size="4">
<OPTION value="test">
test data
</OPTION>
<OPTION value="test1" selected>
test dtaa 1
</OPTION>
</SELECT>
<html:select property="selectedView">
<c:forEach var="viewName" items="${viewNames}">
<html:option value="${viewName}">
<c:out value="${viewName}"/>
</html:option>
</c:forEach>
</html:select>
Using html:select and html:option will take care of marking the correct
option selected.. assuming your case the value of selectedView matches
the viewName.
I left them both the same for viewName but in reality you might be
submitting a different value than what is being displayed as the option.
I couldn't tell that by what you provided though.
More than like you might have something like a Collection of View
objects with and id and a name in them (by the way, you probably don't
want to use Vector for your Collection). Assuming a View object as
described, you'd want:
<html:select property="selectedViewID">
<c:forEach var="view" items="${viewItems}">
<html:option value="${view.id}">
<c:out value="${view.name}"/>
</html:option>
</c:forEach>
</html:select>
To use JSTL download the standard and jstl jars
http://cvs.apache.org/builds/jakarta-taglibs/nightly/, throw them in
your web-inf/lib dir then to use the c tag, on the top of this JSP put:
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"; %>
--
Rick
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