                                               completeMethod="#{categoryController.completeCategoryServiceInvestigation}"

                                                var="cat" itemLabel="#{cat.name} #{cat.parentCategory}" itemValue="#{cat}" >
                                    <p:column headerText="Category">
                                        <h:outputLabel value="#{cat.name}"/>
                                    </p:column>
                                    <p:column headerText="Parent Cate