Create a Different selectOneListbox Depending On the Radio Button Clicked

[Daniel Gee]

How to prompt a specific selectOneListbox depending on the radio button that the user clicks?

I have created a set of radio buttons:

import javax.faces.model.SelectItem;
 
public class DataManagementBean 
{
private String defaultSelectedRecord;
private SelectItem[] records;

public DataManagementBean()
{
SelectItem record1 = new SelectItem("import", "Records available for import");
SelectItem record2 = new SelectItem("export", "Records available for export");
defaultSelectedRecord = new String( "import" );
records = new SelectItem[] { record1, record2 };
}
 
public String getDefaultSelectedRecord()
{
return defaultSelectedRecord;
}
 
public SelectItem[] getRecords()
{
return records;
}
}

The code in my jsp page is like:

<h:outputText value="Select a Data Record"/>
<h:selectOneRadio value="#{dataManagementBean.defaultSelectedRecord}" layout="pageDirection">
<f:selectItems value="#{dataManagementBean.records }"/>
</h:selectOneRadio>

and I know how to create selectOneListbox.

But, I am having problem to prompt different list of records depending on the radion button on which the user clicks.

[Gregg Bolinger]

On a value change event for each radio button, give your private SelectItem[] records a different set of SelectItems[].

[Daniel Gee]

Thanks for the reply; but, huh? I do not understand.

I have a listbox A created:

<h:selectOneListbox required="true" immediate="true">
<f:selectItem itemValue="hafmds_fac_sar" itemLabel="HAFMDS -- FAC_SAR"/>
<f:selectItem itemValue="local_afsc_sub" itemLabel="LOCAL -- AFSC_SUB"/>
<f:selectItem itemValue="mds_auth" itemLabel="MDS -- Authorizations"/>
<f:selectItem itemValue="mds_wartime" itemLabel="MDS -- Wartime_Inplace"/>
</h:selectOneListbox>

I have another listbox B.

I have two radio buttons. The default radio button displays the listbox A. If user click on the other radio button, the browser is supposed to diaplay listbox B.

[Gregg Bolinger]

Ohh, ok, so you need a boolean member in your backing bean and use the rendered attribute for your listboxes that is based on that boolean value.

rendered="#{dataManagementBean.showListOne}"
rendered="#{!dataManagementBean.showListOne}"

[Daniel Gee]

Sorry, I am even more confused.

I have two radio buttons; one is default and the other is not default. the radio buttons are created this way:

<h:outputText value="Select a Data Record"/>
<h:selectOneRadio value="#{dataManagementBean.defaultSelectedRecord}" layout="pageDirection">
<f:selectItems value="#{dataManagementBean.records }"/>
</h:selectOneRadio>

where defaultSelectedRecord and records are the properties in my backing bean: DataManagementBean.

When my web page is first displayed, the defaultSelectedRecord is selected, and the list box A is supposed to be on the screen.

If users opt for the other radio button, I am supposed to prompt list box B on the screen.
[ September 21, 2005: Message edited by: Daniel Gee ]

[Gregg Bolinger]

Do you have a change listener for your radio buttons?

[Daniel Gee]

I have put a ValueChangeListener for my radio button. I have two radio buttons. And I have two list boxes. List box A will be displayed if the first radio button is clicked by users. List box B will be displayed if the second radio button is clicked by users.

To have something displayed in the list box when the web page is "first" rendered, I would like to show a default radio button (the first radio button) and display the list box A.

But, my code has a "runtime" error:

java.lang.IllegalArgumentException: Conversion Error setting value ''{0}'' for ''{1}''.

My code is show below. In my jsp page, I try to construct a set of radio buttons and a list box:

/* The value attribute in the selectOneRadio tag should be the "dataTransferType" property in my backing bean; but I want to show a default radio button.  If I do not implement the ValueChangeListener, I was able to show a default button */
<h:selectOneRadio value="#{dataManagementBean.dataTransferTypeItems[0]}" layout="pageDirection" onchange="submit()" immediate="true" valueChangeListener="#{dataManagementBean.showRecordList}">
<f:selectItems value="#{dataManagementBean.dataTransferTypeItems}"/>
</h:selectOneRadio>
 
<h:selectOneListbox value="#{dataManagementBean.record}" required="true" immediate="true">
<f:selectItems value="#{dataManagementBean.recordItems}"/>
</h:selectOneListbox>

In my backing bean, I have:

private String dataTranferType;
private SelectItem[] dataTransferTypeItems;
private Map records;
private SelectItem[] recordItems;
 
dataTransferTypeItems = new SelectItem[] 
        {
            new SelectItem("import", "Records available for import"), 
            new SelectItem("export", "Records available for export")
        };
 
public SelectItem[] showRecordList( ValueChangeEvent event ) 
{
FacesContext context = FacesContext.getCurrentInstance();
if ( ( ( String )event.getNewValue() ).equals( "import") )
{
recordItems = ( SelectItem[] ) records.get( "import" );
}
else
{
recordItems = ( SelectItem[] ) records.get( "export" );
}
context.renderResponse();
return recordItems;
} 

This is how I contruct my "records", which is a Map:

records = new HashMap();
records.put( "import",
new SelectItem[]
{
new SelectItem( "import1", "HAFMDS -- FAC_SAR" ), new SelectItem( "import2", "LOCAL -- AFSC_SUB" ), 
new SelectItem( "import3", "LOGMOD -- Chalk" ), new SelectItem( "import4", "MDS -- Authorizations" ),
new SelectItem( "import5", "MDS -- Wartime_Inplace" )
}
);

records.put( "exports",
new SelectItem[]
{
new SelectItem( "export1", "LOGFOR -- UTA" ), new SelectItem( "export2", "MISSION -- DESIGN_NUM" ), 
new SelectItem( "export3", "AUTH -- Upgrade" ), new SelectItem( "export4", "MISCAP -- Basic" ), 
new SelectItem( "export5", "DEPID -- HQ_FAM_PHONE" )
}
);

The runtime error message is:

java.lang.IllegalArgumentException: Conversion Error setting value ''{0}'' for ''{1}''.
com.sun.faces.util.Util.getSelectItems(Util.java:628)
com.sun.faces.renderkit.html_basic.MenuRenderer.getOptionNumber(MenuRenderer.java:488)
com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:465)
com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:430)
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:720)
javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:623)
javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:546)
com.sun.faces.taglib.html_basic.SelectOneListboxTag.doEndTag(SelectOneListboxTag.java:521)
org.apache.jsp.pages.screen1_jsp._jspx_meth_h_selectOneListbox_0(screen1_jsp.java:383)
org.apache.jsp.pages.screen1_jsp._jspx_meth_h_form_0(screen1_jsp.java:212)
org.apache.jsp.pages.screen1_jsp._jspx_meth_f_view_0(screen1_jsp.java:164)
org.apache.jsp.pages.screen1_jsp._jspService(screen1_jsp.java:129)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)

[Daniel Gee]

Let me answer my own question.

Take a look at the example provided by Richard Hightower at http://www-128.ibm.com/developerworks/java/library/j-jsf2/

[vasavi devi]

hi,
in the jsp page you have given something like this.

<h:selectOneRadio value="#{dataManagementBean.dataTransferTypeItems[0]}" layout="pageDirection" onchange="submit()" immediate="true" valueChangeListener="#{dataManagementBean.showRecordList}"><f:selectItems value="#{dataManagementBean.dataTransferTypeItems}"/></h:selectOneRadio>

remove "[0]" while giving the value.
value="#{dataManagementBean.dataTransferTypeItems}"

try to give like this and try.

[Daniel Gee]

The problem was more complicated than that.

I have had it worked out. I followed the example provided by Richard Hightower at http://www-128.ibm.com/developerworks/java/library/j-jsf2/