StrutsTags/JSP or... Another Nesting Newbie
I am having trouble teaching myself Struts taglib syntax/JSP coding and I am stuck on a classic nested object JSP/Struts syntax problem...
Can you explain the errors in the following snippet?
Background: The form associated with the jsp contains a property called "electronicDocDetails" which is an ArrayList of "DisplayFieldList" objects. DisplayFieldList objects have a list of "DisplayField" objects that have displayNames and values, etc..
The Jsp validation results in the error "Jsp Translate: The Attribute value has no value"
Also, I've tried writing this using only 'logic' and 'bean' tags instead of using nesting and I get the same error. (Yes, I've read two Struts books and the Apache Struts website documentation :-( ).
<BODY>
<html:form action="/CaseInquiryDetails">
<nested:iterate property="electronicDocDetails" >
<TR align="center">
<TD align="center" colspan="4" class="MssTDFormLabel">
<bean:message key="label.caseinquirydetails.electronicdoc"/></TD>
</TR>
<nested:iterate property="fieldList" >
<TR align="center">
<TD align="left" class="MssTDFormLabel" colspan="1">
<nested:write property="displayName" />
</TD>
<nested:equal property="displayName" value="NAME" >
<TD align="left" class="MssTDFormLabel" colspan="3">
<%-- ERROR ON THE FOLLOWING LINE with the first '<bean:write>' --%>
<%-- "Jsp Translate: The Attribute value has no value" --%>
<html:link href="<%=prefix%><bean:write property="value" />">
<bean:write property="value" />
</html:link>
</TD>
</nested:equal>
<nested:notEqual property="displayName" value="Name" >
<TD align="left" class="MssTDFormResult" colspan="3">
<bean:write property="value" />
</TD>
</nested:notEqual>
</TR>
</nested:iterate>
</nested:iterate>
TIA...
jrh
The "nested" tags are for use in navigating bean hierarchies.
NOT for nesting tags.
ie you use them like this (pulling an example from the documentation: http://struts.apache.org/struts-doc-1.2.x/userGuide/struts-nested.html
//Instead of this:
<nested:write property="myNestedLevel.propertyOne" />
<nested:write property="myNestedLevel.propertyTwo" />
<nested:write property="myNestedLevel.propertyThree" />
//You can write this:
<nested:nest property="myNestedLevel" >
<nested:write property="propertyOne" />
<nested:write property="propertyTwo" />
<nested:write property="propertyThree" />
</nested:nest >You should just be using the regular "logic" and "bean" tags
Your main problem is here:
<html:link href="<%=prefix%><bean:write property="value" />">
You can't nest custom tags as attributes to other custom tags.
You can only use expressions.
Try declaring a temp variable with that value like this:
<bean:define id="tempURL"><%=prefix%><bean:write property="value" /></bean:define>
<html:link href="<%= tempURL %>">
<bean:write property="value" />
</html:link>
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