<form-validation> <formset> <form name="RequiredForm"> <field property="stringData" depends="required"> <arg0 key="item.id"/> </field> </form> </formset> </form-validation> <form-beans> <form-bean name="RequiredForm" type="org.apache.struts.validator.DynaValidatorForm" > <form-property name="stringData" type="java.lang.String" /> </form-bean> </form-beans> <action-mappings> <action path="/requir