jsf - primefaces how to update datatable -

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how can update datatable in primefaces.datatable updates when refresh page. have found solutions none of them worked me.for example when change update ":companyform:companypanel" save button disappers. removed colon , can see button still doesn't update datatable. here jsf page;

<h:form id="companyform" prependid="false">   <p:panel id="companypanel">     <p:datatable id="companylisttable">      //columns     </p:datatable>   </p:panel>  <p:outputpanel id="newdatepanel">   <p:commandbutton value="save"                                              update="companyform:companypanel     companyform:newdatepanel"                                              action="#{mycontroller.save()}"/> </p:outputpanel> </form>

and spring controller;

init(){     companylist = service.getallcompany(); }  public void save(){     service.save(company); }

actually have ids messed up, otherwise components have been refreshed.

the actual client id of component depends on naming container tag's in. in case, naming container <h:form>. included prependid="false" property in form tag client id of nested <p:panel id="companypanel"> companypanel, otherwise (if omitted prependid altogether) - companyform:companypanel.

still, want update component within same naming container (form), don't need prefix form id , let <p:commandbutton update="companypanel">: without colon , without form id, there any.

in state code now, there no component id companyform:companypanel.


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