             id="itemList" editable="true" >  

                    <f:facet name="header">  
                        Bill Item 
                    </f:facet>  

                    <p:column headerText="Item Name" >  
                        #{bi.item.name} 
                    </p:column>  

                    <p:column headerText="Qty" >                          
                        <p:inputText autocomplete="off"  id="qty" value="#{bi.tmpQty}" label="Qty">                         
                