[Robin zou]

Hi,i got a piece of jsf code like this:

<h:panelGrid columns="1">
   
                //show1 part
                  <h:dataTable value="#{temp.nameFile}" var = "myL" rendered="#{temp.show1}">
                  <h:column>
                    <h:commandLink action="#{temp.createBean}" value="#{myL.name}" immediate="true">
                   <f:param name="name" value="#{myL.name}"/>
                   <f:param name="path" value="#{myL.path}"/>
                 </h:commandLink>  
                 </h:column>
                 </h:dataTable>
             
          </h:panelGrid>

now i want to write my own custom component and use a very simple tag to get the same output,and the tag may look like this:

<robin:category scheme="iso3166"> </robin:category>  

But i don’t want to write the html code directly in my renderer to render the components like dataTable and command link.so the code to render the above components is like this:

public void encodePart1(FacesContext context, UIComponent component,
            ResponseWriter writer)
    {

        /* create the components */

        // create the out most panel grid
        HtmlPanelGrid topPanelGrid = new HtmlPanelGrid();
        topPanelGrid.setColumns(1);

        // ********create the data table in part1*********
        HtmlDataTable dataTable = new HtmlDataTable();
        // set value attribute
        ValueBinding valueBinding = MyUtil.createValueBinding(context,
                "#{temp.nameFile}");
        dataTable.setValueBinding("value", valueBinding);
        // set var attribute
        dataTable.setVar("myL");
        // set rendered attribute
        ValueBinding renderBinding = MyUtil.createValueBinding(context,
                "#{temp.show1}");
        dataTable.setValueBinding("rendered", renderBinding);

        dataTable.setParent(topPanelGrid);
        // **************create the column*************
        UIColumn column = new UIColumn();

        column.setParent(dataTable);
        // **************create the command link*************
        HtmlCommandLink commandLink = new HtmlCommandLink();
        ValueBinding actionBinding = MyUtil.createValueBinding(context,
                "#{temp.createBean}");
        commandLink.setValueBinding("action", actionBinding);

        ValueBinding linkValueBinding = MyUtil.createValueBinding(context,
                "#{myL.name}");
        commandLink.setValueBinding("value", linkValueBinding);

        commandLink.setImmediate(true);

        commandLink.setParent(column);
        // ***********create the params***********
        UIParameter param1 = new UIParameter();
        ValueBinding p1Binding = MyUtil.createValueBinding(context,
                "#{myL.name}");
        param1.setName("name");
        param1.setValueBinding("value", p1Binding);

        UIParameter param2 = new UIParameter();
        ValueBinding p2Binding = MyUtil.createValueBinding(context,
                "#{myL.path}");
        param1.setName("path");
        param1.setValueBinding("value", p2Binding);

        param1.setParent(commandLink);
        param2.setParent(commandLink);

        // renders the components
        try
        {
            topPanelGrid.encodeBegin(context);
            dataTable.encodeBegin(context);
            dataTable.encodeChildren(context);
            dataTable.encodeEnd(context);
            topPanelGrid.encodeChildren(context);
            topPanelGrid.encodeEnd(context);
        } catch (java.io.IOException ioe)
        {
            FacesMessage message = new FacesMessage("IOException");
            context.addMessage(null, message);
        }
    }

As you see, i create the instances of the components,set the attribute value bindings,and set the parent-child relationships.Finally,i invoke the encode begin method of parent components.But the result page is a blank page, the components are not rendered.Can i render the components this way?or I must write the according html code for each component?
Best Regards:)
Robin[/b]

[Robin zou]

I changed the code in the try-catch block to the following code(i use myfaces):

 HtmlGridRenderer gridRenderer=new HtmlGridRenderer();
             gridRenderer.encodeBegin(context,topPanelGrid);
             gridRenderer.encodeChildren(context,topPanelGrid);
             gridRenderer.encodeEnd(context,topPanelGrid);

it also doesnt work.please help!

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