java - How do I filter with more than one letter in primefaces selectonemenu? -

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i using primefaces selectonemenu. user request me have option type more 1 letter have filtering, works on 1 letter. possible?? have extracted code of selectonemenu on xhtml file. hope helps. help:

<p:selectonemenu required="true" requiredmessage="#{esmessage['warn.esttc3s5.coursetype']}" id="ddcoursetype" value="#{dtwebvoesttc3s4.coursetypeid}" height="300" style="width:421px"   onchange="sublistupdate();" effect="fade">  <p:ajax listener="#{dtselectedcoursetitlevo.filterlist(dtwebvoesttc3s4.coursetypeid, dtcoursetitlevo)}" update="ddcoursetitle" />  <f:selectitem itemlabel="#{eslabel['lbl.esttc3s4.lblselectcoursetype']}" itemvalue="" noselectionoption="true" />  <f:selectitems value="#{dtcoursetypevo.coursetypelist}" var="coursetype"      itemlabel="#{language.localestring eq 'zh'? coursetype.coursetypechi: coursetype.coursetype}" itemvalue="#{coursetype.coursetypeid}"/>  </p:selectonemenu>  ........................................................    <p:remotecommand id="teachernamelistremotecommandid"       name="sublistupdate" action="updatecoursetitlelistdata3s4form"       update="ddcoursetitle" />

why don't use filter option selectonemenu component?

filter="true" filtermatchmode="startswith"

source: http://www.primefaces.org/showcase/ui/input/onemenu.xhtml

edit: of course can set match mode different options contains or whatever want


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