Creating jsf component dynamically and binding back to a ManagedBean -

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my idea/requirement render dynamically generated jsf page , bind/capture user filled data , save db. dynamically rendering part working fine not able capture user filled data managedbean. using jsf 2.1.

loginmanagedbean.java (requestscoped)   private string fieldname; //getters , setters  public string trytry() {     htmlinputtext inputtext = (htmlinputtext) facescontext.getcurrentinstance().getapplication().createcomponent(htmlinputtext.component_type);     inputtext.setid("it");     inputtext.setvalueexpression("value", facescontext.getcurrentinstance().getapplication().getexpressionfactory().createvalueexpression(facescontext.getcurrentinstance().getelcontext(),"#{loginmb.keyvaluemap['" + inputtext.getid() + "']}", string.class));      panelgroupchilds.add(inputtext);     grid.getchildren().add(panelgrouptextbox);      return "done"; }   public string save() {         system.out.println("fieldname ---  " + this.fieldname);         return "save";      }   done.xhtml (dynamically rendered page)  <h:panelgrid  binding="#{loginmb.docgridelems}"></h:panelgrid>       <h:commandbutton id="cndb" value="save" action="#{loginmb.save()}"></h:commandbutton>

i able see rendered textbox in done.xhtml on submit save button, not able value of "feildname" (it null). not able find went wrong.

i tried bind map not able it.


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