HI, Rerendering is not working in my code please help in this

               <rich:dataTable id="bookIncome" value="#{myBean.ftBoookIncomelst}" var="item"  rowKeyVar="row" first="0"  width="100%">
                  <rich:subTable id="subBookIncome"value="#{item.txIncome}" var="income" rowKeyVar="row">


                  <rich:column id="descrtiptionColumn" width="30%">
                    <h:outputText  value="#{income.descriptionCell.value}" rendered="#{!item.editableRow}" 
                                  style="#{income.descriptionCell.boldClass}">
                        </h:outputText>  

                      <rich:inplaceInput layout="block"
                        value="#{income.descriptionCell.value}" required="true"
                        rendered="#{item.editableRow}"
                        requiredMessage="Description at row #{row+1} wasn't filled."
                        changedHoverClass="hover" viewHoverClass="hover"
                        viewClass="inplace" changedClass="inplace" selectOnEdit="true"
                        editEvent="onclick">


                    </rich:inplaceInput>

In the above code i have proper id for datatable and i'm calling my ajax call using

But its not showing any response but its hitting the server and its calling proper method and updating the required list also..Please help in this why its not rendering its not showing any exception on console also...