Using h:outputlink with rendered attribute

Hey,
I wanna know how to use the rendered tag with h:outputlink.
I have a variable called requestNumber in the request entity bean. Now, I dont want the link to show up when the requestNumber is =="To be set".
How can this be done?
This is the code i wrote, but clearly the rendered bit is not working. Please help me!
<h:outputLink id="linkreq" value="http://localhost:8080/fixmgmt/displayrequest.xhtml"
                                           rendered="#(request.requestNumber!=To be set)>
                              <f:param name="apar_num" value="#{request.requestNumber}" />
                              <h:outputText value="#{request.requestNumber}" />
{code}

Hi Sapphire,
The first thing I noticed is that you are using normal brackets '(' rather than curly brackets '{' around your "rendered" EL expression, you'll also need to enclose the phrase To Be Set in single quotes. The code for your outputLink should look like this:
<h:outputLink id="linkreq" value="http://localhost:8080/fixmgmt/displayrequest.xhtml"
rendered="#{request.requestNumber=='To Be Set'}">
<f:param name="apar_num" value="#{request.requestNumber}" />
<h:outputText value="#{request.requestNumber}" />
</h:outputLink>You could also use the empty EL expression to see if the variable resolves to null (which it would do it it had not been set).
Hope this helps
Andy

Similar Messages

Problem with rerendering h:panelGrid with rendered attribute

Hi,
I am new to jsf and trying to learn its features as I find it easy and fast for development purpose.I have been developing with jsf for past few weeks and got myself stuck with a problem, tired of which I had to take the forum's help :). My problem is that I need to show/hide h:panelGrid using any of the options below:
I tried putting the grid in the div and show/hide that div using javascript..works fine but the problem with this is, even when the div is hidden the components (h:inputText ) within the grid are submitted with the form, which should not be the case since its hidden (as with normal jsps).
I worked around with rendered attribute of the grid, and show/hide this grid using the backing bean method which is actually a valueChangeListener of h:selectOneMenu and set the boolean for the rendered to true/false as required, the grid is hide/shown correctly, but this isn't giving me any solution because when I submit the form with this grid shown on the view, its components values are still not submitted :( I dont know whats the reason behind this or what clue am I missing here. I dont know why when the grid is shown correclty, its components values are not submitted.. hence not validated too..
Any help will be highly appreciable.
Regards
srehman

>
gimbal2 wrote:
No, in "normal jsps" you'll get the same thing - even though you
visibly hide a component, it is still there and thus will still be part
of a form submit. If you don't want form fields to submit, you'll have
to make sure they are physically not there, or the fields are disabled.Well thanks alot for correcting me on this mate.
Don't know either, it should work if you did everything correctly. Are
you sure the databinding (to a JSF backing bean field) of the grid is
correct? When you create a similar setup but without any of the
show/hide logic, does it work then?I guess I have done it correctly but let me tell you, I have no direct binding to the grid itself, instead I have h:inputText fields in the grid that are bound to the backing bean's properties, which I need to submit and validate too. e.g{color:#800000}<h:panelGrid id="myPanel" columns="3" rendered="Bean.renderStatus">
<h:outputText value="variable"/>
<h:inputText id="v" value="Bean.property" required="true">
<a4j:support ......... />
</h:inputText>
</h:panelGrid>{color}
{color:#800000}<rich:message for="v"/>{color}
Here I am able to hide and show the grid but I am unable to submit the field in any case whether its hidden or shown :( At first the grid is hidden and then on the valueChangeListener of h:selectOneMenu rendered value is set to either true or false.( renderStatus is set in the value change listener ).
And yeah without this logic of hide/show its working fine with me. Any guess or idea what am I doing wrong here.
Thanks for your time by the way.
Regards,
Shoaib

Custom tag with rendered attribute

Is it possible to create a custom tag that operates similar to a JSF tag with the rendered attribute? Wrapping output with c:if test="..." is not as nice as the JSF rendered option, but I don't want to use JSF for this particular project.
Edited by: black_lotus on Nov 23, 2007 12:13 PM

TLD File, per your previous recommendation:
<attribute>
     <name>disabled</name>
     <required>false</required>
     <rtexprvalue>true</rtexprvalue>
     <type>boolean</type>
</attribute>My Tag class (snippet):
public class ButtonTag extends TagSupport
private boolean disabled;
public ButtonTag() {}
public boolean isDisabled()
     return disabled;
public void setDisabled(boolean b)
    disabled = b;
}A sample of the jsp file invoking it:
<c:set var="result" value="${computedValue}"/>
<ltm:button disabled="${result}"/>Regardless of the value of result, ("true" or "false") it always passes false to the setDisabled method of the button tag class.

Problem with rendered attribute in jhs 10.1.3.3

We are currently trying to migrate our applications from jhs 10.1.3.2.52 to jhs 10.1.3.3.87 using jdeveloper 10.1.3.5. We are facing a problem with all the detail groups structured inside detail group regions - they have all disappear from the pages.
In my example code i have two master-detail groups Products (Master) and ExpertiseAreas (Detail) on the same page:
Products - Group
-> ExpertiseAreasDtl - Detail Group Region
-> ExpertiseAreas - Group (Samepage="true")
The problem is that the detail group ExpertiseAreas is not rendered on the page.
As i looked in through the pages generated by the 2 different releases of jhs using the same app definition, i can see the following:
CODE GENERATED FOR THE ExpertiseAreasDtl Detail Group Region (all the vms used are the default):
in jhs10.1.3.3.87:
<af:panelGroup *rendered="#{(ProductsIterator.currentRow!=null and ProductsIterator.findMode!='true')}"* id="ProductsRegionsExpertiseAreasDtlPanelGroup">
in *jhs 10.1.3.2. 52*:
<af:panelGroup id="ProductsRegionsExpertiseAreasDtlPanelGroup">
First of all a rendered attribute is being generated in the new version of jhs and not in the old.
The real problem seems to be with the iterator binding generated from verticalRegionContainer.vm in the regular expression: "#{(ProductsIterator.currentRow!=null and ProductsIterator.findMode!='true')}". It should have been *bindings.*ProductsIterator and not plain ProductsIterator. Has anybody got any ideas on how to solve the problem?
Thanks
Giorgos
Edited by: user647567 on 17 Δεκ 2009 2:16 πμ
Edited by: user647567 on 17 Δεκ 2009 5:58 πμ

Giorgos,
We have uploaded a new service update, 10.1.3.3.88, on the cso.oracle.com site. This should fix your issue.
Steven Davelaar,
JHeadstart Team.

CommandLink doesn't work with rendered-attribute

Hello,
I have quite a strange problem.
I have a commanLink, which has a rendered attribute. The link is rendered conditionally, so the rendered-value comes from a bean.
<h:commandLink rendered="#{Bean.canEdit}" action="#{Bean.selectDocumentToEdit}" >
<h:outputText value="Edit doc" />
<f:param name="param" value="#{Bean.doc.id}"/>
</h:commandLink>Showing the link is working like it should, but commandLink is not working with this. When I change rendered="true", commandLink works ok. But now it doesn't call the commandLink action at all.
Any help would be appreciated

rendered="true", commandLink works ok. But now it
doesn't call the commandLink action at all.I meant it doesn't call the commandLink action method when retrieving rendered-value from bean.
I'm using RI 1.1.01

Is there support in certmap.conf for using DN's with dc= attributes

Hi Folks-
The Question:
Is there any support on certmap.conf (or the like) for dealing with suffixes that use the "dc=example,dc=com" format (in either 5.2 or 6.0)?
The Details/Background:
Like many places our suffixes are named ending with "dc" attributes (e.g. dc=example,dc=com). I've been setting up SSL Client Certificate based authentication. It's working via the CmapLdapAttr with a custom attribute/class added to the schema (I haven't finished with VerifyCert yet).
The docs say that DNComps and FilterComps support the following RDN keywords: cn, ou, o, c, l, st, e, and mail. Notably missing from both is "dc". This seems to leave no valid value for DNComps (forcing all the searches to be across ALL suffixes including cn=config and co). With those global searches FilterComps also seems to be fairly limited (especially if uid is not part of the Certificate's Subject DN which it arguably shouldn't be in many situations).
It seems all I'm left with is CmapLdapAttr (after creating the custom attribute & class) with every search across all suffixes. I don't think I can (or should) place indexes in the stuff in dse.ldif, hopefully they won't stop the other suffixes to be searched using their indexes and these should be small enough (and hopefully in memory) that they don't make a real difference.
Thanks,
-Scott-

Ok, so as far as I can tell that just leaves using "CmapLdapAttr" with a custom attribute (& class) extension to the schema.
Since I won't be able to restrict the suffix being searched it's going to do at least 6 separate scans: one each on userRoot (and any other user suffixes), NetscapeRoot, "", cn=schema, cn=config, and cn=monitor (based on what it's reported in the logs already).
(1) Am I correct in my assumption that creating indexes on attributes in the suffixes in dse.ldif is probably not possible and would be a bad idea?
My guess is that everything in dse.ldif gets loaded into memory on startup and stays there. Also these aren't that big so the combination should mean that their search time is negligible.
(2) When automatically searching all 6+ suffixes (on every client certificate authenticated connection) will it perform indexed searches on userRoot & NetscapeRoot (assuming the correct indexes exist for CmapLdapAttr) and unindexed searches for the suffixes in dse.ldif? Or will the lack of indexes in the dse.ldif suffixes cause all of the searches to be unindexed?
(3) Is there something I'm missing that would be a better approach?
Thanks,
-Scott-

Value binding not working with rendered attribute

In my jsf page i'm encountering problem with value binding it is not working for a h:inputText with rendered condition even when the rendered condition evaluates to true & the component is rendered.While trying to retrieve the value of the components with conditional rendering on submit i'm unable to retreive the value while on removing rendered condition the value binding is working perfectly
<h:selectOneMenu id="DropDown" value="#pc_GeneralRequestInfo.objInfoDTO.State}" rendered="#pc_GeneralRequestInfo.objAddressRequestDetailsDTO.selectedAddressType == 'HOME'}">
<f:selectItems value="#{pc_GeneralRequestInfo.statesList}" />
</h:selectOneMenu>

There is a { missing from the value attribute in the code you posted.

JSPs using Custom Tag with Boolean attribute cannot compile

Hi,
In Oracle9iAS(9.0.3), a jsp using a tag extension, which has a Boolean attribute, caused the following compile error, although the jsp is valid in other web containers.
ERROR:
/opt/oracle/j2ee/home/application-deployments/simple/simple/persistence/_pages/_test.java:56: Method toBoolean(java.lang.Boolean) not found in class _test.
__jsp_taghandler_1.setExists( OracleJspRuntime.toBooleanObject( toBoolean( b)));
JSP:
<%@ page language="java" %>
<%@ page errorPage="error.jsp" %>
<%@ taglib prefix="jnpr" uri="/WEB-INF/testtag.tld" %>
<%
Boolean b = Boolean.valueOf("true");
%>
<jnpr:TestTag exists="<%= b%>"/>
The boolean value is <%= b %>
Tag Handler:
package defaultpak;
import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
public class TestTag extends TagSupport{
private Boolean exists = null;
private java.lang.Boolean getExists() {
return exists;
public void setExists(java.lang.Boolean newExists) {
exists = newExists;
public int doStartTag() throws JspException {
return super.doStartTag();
Is this a known problem? Is there a way to get around this?
Thanks in advance.
Fred

This is a known issue with 903, fixed in coming 904.
In 903 the workaround is to use primitive type "boolean" instead of Object type "java.lang.Boolean" in user's getter and setter code for the taglib.
-Prasad

Jsf 1.2_08 gives me blank page when i use h:panelGrid with binding attribut

I am using jsf 1.2_08 (Mojarra 1.2_08-b06-FCS) + jstl-1.2.jar + Apache Tomcat/6.0.6 + jdk1.5.0_08 on linux suse server. when i load a jsp page with a h:panelGrid, i get a blank page
my panelGrid is as follows
<h:panelGrid id="financialProjections" binding="#{veusSituationMonitorDisplayBean.financialProjections}" border="0" cellpadding="0" cellspacing="0" columnClasses="nspLabel w200,ra bl,ra bl,ra bl,ra bl,ra bld,ra bl,ra bl" columns="8" width="100%"/>
when i remove the binding attribute, rest of the page displays fine.
Thanks in Advance
my web.xml is
<?xml version="1.0"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd">
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>AJAXServlet</servlet-name>
<servlet-class>net.em.servlets.AJAXServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>InitialLizeApplicationbeansServlet</servlet-name>
<servlet-class>net.em.servlets.InitialLizeApplicationBeanServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AJAXServlet</servlet-name>
<url-pattern>/abc.ajax</url-pattern>
</servlet-mapping>
<filter>
<filter-name>ExtensionsFilter</filter-name>
<filter-class>
net.em.emrp.filters.EMExtensionsFilter
</filter-class>
<init-param>
<param-name>uploadMaxFileSize</param-name>
<param-value>10m</param-value>
</init-param>
<init-param>
<param-name>uploadThresholdSize</param-name>
<param-value>100k</param-value>
</init-param>
</filter>
<filter>
<filter-name>ResponseOverrideFilter</filter-name>
<filter-class>org.displaytag.filter.ResponseOverrideFilter</filter-class>
</filter>
<session-config>
<session-timeout>
720 
</session-timeout>
</session-config>
<filter-mapping>
<filter-name>ExtensionsFilter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<filter-mapping>
<filter-name>ResponseOverrideFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>ResponseOverrideFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<error-page>
<error-code>404</error-code>
<location>/error404.html</location>
</error-page>
<error-page>
<error-code>500</error-code>
<location>/error500.html</location>
</error-page>
<taglib>
<taglib-uri>http://ajaxtags.org/tags/ajax</taglib-uri>
<taglib-location>/WEB-INF/ajaxtags.tld</taglib-location>
</taglib>
</web-app>

BalusC wrote:
I rather mean that you shouldn't instantiate the HtmlPanelGrid in the bean yourself, but just use the instance which is set through the setter during the restore_view phase.BalusC, why do you recommend this? The spec allows for the bean to create the component:
*JSF 1.2, section 3.1.5* says:
When a component instance is first created (typically by virtue of being referenced by a UIComponentELTag in a JSP page), the JSF implementation will retrieve the ValueExpression for the name binding, and call getValue() on it. If this call returns a non-null UIComponent value (because the JavaBean programmatically instantiated and configured a component already), that instance will be added to the component tree that is being created. If the call returns null, a new component instance will be created, added to the component tree, and setValue() will be called on the ValueBinding (which will cause the property on the JavaBean to be set to the newly created component instance).

How to populate the xml file into the treeview using c#(along with the attribute called id) using dom.

<?xml version="1.0" standalone="yes"?>
<Student_Details>
<Student Id="1">
<Name >sandeep</Name>
<Age>12</Age>
<Mobile>123456789</Mobile>
</Student>
<Student Id="2">
<Name >ololjk</Name>
<Age>kjlokmo</Age>
<Mobile>njonojniohuj</Mobile>
</Student>
<Student Id="3">
<Name >Sandeep Pr</Name>
<Age>12</Age>
<Mobile>9865231870</Mobile>
</Student>
<Student Id="4">
<Name>ololjk</Name>
<Age>kjlokmo</Age>
<Mobile>njonojniohuj</Mobile>
</Student>
<Student Id="5">
<Name>ololjk</Name>
<Age>kjlokmo</Age>
<Mobile>njonojniohuj</Mobile>
</Student>
<Student Id="6">
<Name>ololjk</Name>
<Age>kjlokmo</Age>
<Mobile>njonojniohuj</Mobile>
</Student>
<Student Id="7">
<Name>ololjk</Name>
<Age>kjlokmo</Age>
<Mobile>njonojniohuj</Mobile>
</Student>
<Student Id="8">
<Name>ololjk</Name>
<Age>kjlokmo</Age>
<Mobile>njonojniohuj</Mobile>
</Student>
<Student Id="9">
<Name>ololjk</Name>
<Age>kjlokmo</Age>
<Mobile>njonojniohuj</Mobile>
</Student>
<Student Id="10">
<Name>ololjk</Name>
<Age>kjlokmo</Age>
<Mobile>njonojniohuj</Mobile>
</Student>
</Student_Details>
Sandeep Puvvadi

Have a look at the
XmlDocument class. Read the
documentation (it's all written there for us all). If you'll have implementation questions, feel free to ask again. At the moment, I can't see what you've already tried and what's not working.
Armin

Variable Substitution with tag attribute

Hi,
is possible to use variable substitution with tag attribute? as follow:
<root directory="xxx" filename="yyy">
<....
</root>
using variable substitution for directory : root,1,directory,1
root,1,filename,1

Hi,
I solved my problem using Dynamic Configuration to set the FileName and Directory fields in Adapter Specific Configuration. To use Variable Substitution only accept element in XML.
Thanks for all.

Rendered Attribute

I have a CommandButton with rendered attribute to display it depend of the step in a bussines process.
The JSF Page have a request scope then all flags need to be recalculate each request (The page is reloaded severla times to complete the process, the actions return null).
Well, my problem is that when I render the Commandbutton and make click on it the form be submitted but the action never be executed.
I think the problem is that when the request be processed maybe the flags to render the button be fasle and the actionevent never be queue.
Anybody have idea ?
Some suggest to resolve this problems.
Thank you in advanced.

loboEsa wrote:
I have a CommandButton with rendered attribute to display it depend of the step in a bussines process.
The JSF Page have a request scope then all flags need to be recalculate each request (The page is reloaded severla times to complete the process, the actions return null).
Well, my problem is that when I render the Commandbutton and make click on it the form be submitted but the action never be executed.
I think the problem is that when the request be processed maybe the flags to render the button be fasle and the actionevent never be queue.
This is exactly right. Some options include:
1) Storing the rendered attribute value in the session instead of the request.
2) Making the rendered attribute depend on a request parameter which can be added as a hidden input.

Possible bug when rendered attribute set with EL

I have the following outer panelform:
<af:panelForm rendered="#{RoleSearch.roleSelected == RoleSearch.SUPERVISOR}">
within this panelform i have a table and a selectone commandbutton,
<af:commandButton text="Edit"
action="#{RoleSearch.editDetails}">
<af:setActionListener from="#{row.Userid}"
to="#{processScope.userIdSelected}"/>
</af:commandButton>
don't worry about the parameter my action listener is settting.
the problem is, when the commandbutton is encapsulated with an outer rendered component, it does not function, it does not trigger the action. if i manually set the rendered attribute to "true" things work fine.
The components are displayed correctly, i.e. rendered correctly depending on my holder, however the commandbutton won't fire off the action when it is used like this.
has anyone faced this problem before? is this a known issue?
any help is much appreciated, i have had to write a few workarounds to resolve similar issues i have run into when developing with ADF BCs.
thanks.

Hi,
i can't see any obvious problems with what you are doing especially considering that it works ok if you manually set the rendered attribute of the panelForm to true.
Have you tried setting the rendered attribute at the command button level and leaving the panelForm rendered?
Brenden

TaskMenu is not rendering properly using rendered attribute withSecurityCxt

Hi All,
I am trying to use this code rendered="#{!(securityContext.userInRole['ZPM_ENT_MARKETING_BUDGET_MANAGER_DUTY'])}" in the itemNode UI component of my Budget_taskmenu.xml. But UI is not rendering it properly.
I have checked the same code in the backing bean and it is returning true and false as per expectation but at UI level my menu is not coming properly (it is coming as #{null} in place of name in menu).
But same piece of code is working fine in my .jsff file where I am doing the same check in rendered attribute.
rendered="#{!(securityContext.userInRole['ZPM_ENT_MARKETING_BUDGET_MANAGER_DUTY'])}"
Any Suggestion.
Regards,
Sarvesh Kaushik

Hi Frank,
Thanks for your reply.
But I found the actual root cause of the issue.
There is nothing wrong in the expression rendered="#{!(securityContext.userInRole['ZPM_ENT_MARKETING_BUDGET_MANAGER_DUTY'])}".
The actual issue with my code was one label name was wrong bcoz of which menu was not rendering properly.
Thanks and Regards,
Sarvesh Kaushik

Errors in rendered attribute of main jspx files generated code using JAG

I have been using JHeadStart in JDeveloper 10.1.3 Release 3 using the JHeadStart from the update site: http://files.oraclecorp.com/content/AllPublic/SharedFolders/JHeadstart%2010.1.3%20Preview-Public/center.xml
When using JAG on a HR project with 5 levels I get an error in Locations, Regions, Countries, Departments, Employees.jspx files
It generates the following:
rendered="#{!createModes.CreateEmployees ${JHS.addELExpression(${JHS.current.group.insertAllowedExpression},"and")}}"
I fix the "and" problem
rendered="#{!createModes.CreateEmployees ${JHS.addELExpression(${JHS.current.group.insertAllowedExpression},'and')}}"
Disassembling the above for better readability:
rendered=""
!createModes.CreateEmployees ${}
JHS.addELExpression()
${JHS.current.group.insertAllowedExpression},'and'
This should be legal code!?
It complains that it encountered a "(" where another character is expected
Replacing ${JHS.addELExpression(...)} with ${1} I get an error saying Expression Language is not supported for rendered attribute!?
Where do I go from here?
Thanx in advance :-D
PS: I am giving a Java community presentation tomorrow at noon with a JHeadStart demo, so it would be really cool with a fix ASAP ;)
Perhaps using the JHeadStart from local file would fix the problem!? I will give it a try...

This forum is intended for Oracle customers. Please use the Oracle internal mailing list [email protected]
Steven Davelaar,
JHeadstart Team.

Using h:outputlink with rendered attribute

Similar Messages

Maybe you are looking for