Hi, what I am trying to do is to change the set of values in one <s:selectItems> component after changing the value on a facelets page in another <s:selectItems>. In other words speaking lets assume that we have two <s:selectItems> components. In the first one there are branches and in the second one there are categories. And now if I change the branch the categories in the new selected branch should be loaded into the second <s:selectItems> . The code is following: | <h:form id="predefinedSkill" styleClass="edit"> | | <h:outputLabel for="branch"> | #{messages.branch} | </h:outputLabel> | | <s:decorate id="branchDecoration"> | <h:selectOneMenu value="#{branchHome.instance.name}"> | <s:selectItems value="#{branchList.resultList}" var="branch" label="#{branch.name}" /> | <s:convertEntity/> | <a:support event="onchange" reRender="categoryDecoration" ajaxSingle="true" action="#{categoryHome.loadAllCategories()}"/> | </h:selectOneMenu> | </s:decorate> | | | <h:outputLabel for="category"> | #{messages.category} | </h:outputLabel> | | <s:decorate id="categoryDecoration"> | <h:selectOneMenu value="#{categoryHome.instance.name}" > | <s:selectItems value="#{categoryHome.categoryList}" var="category" label="#{category.name}" /> | <s:convertEntity/> | </h:selectOneMenu> | </s:decorate> | | </h:form> | But when I change the branch I get the error: | INFO [lifecycle] WARNING: FacesMessage(s) have been enqueued, but may not have been displayed. | sourceId=predefinedSkill:branchDecoration:j_id29[severity=(ERROR 2), summary=(/specialist/spec_skills.xhtml @76,85 value="#{branchHome.instance.name}": java.lang.IllegalArgumentException: argument type mismatch), detail=(/specialist/spec_skills.xhtml @76,85 value="#{branchHome.instance.name}": java.lang.IllegalArgumentException: argument type mismatch)] | | If the Branch Entity has additionally constraints on length i.e. | @Column(name = "NAME", length = 100) | @Length(max = 100) | public String getName() { | return this.name; | } | I get the following error: | INFO [lifecycle] WARNING: FacesMessage(s) have been enqueued, but may not have been displayed. | sourceId=predefinedSkill:branchDecoration:j_id28[severity=(ERROR 2), summary=(length must be between 0 and 100), detail=(length must be between 0 and 100)] | sourceId=predefinedSkill:predefinedSkillDecoration:j_id37[severity=(ERROR 2), summary=(length must be between 0 and 100), detail=(length must be between 0 and 100)] | In both cases the method categoryHome.loadAllCategories() [I don't use branchId as a parameter in this method for the simplicity reason] is not invoked! But if I invoke it from the simple <h:input> component: | <h:form id="predefinedSkill" styleClass="edit"> | | <h:inputText value="TEST"> | <a:support event="onchange" reRender="categoryDecoration" ajaxSingle="true" action="#{categoryHome.loadAllCategories()}"/> | </h:inputText> | | <h:outputLabel for="branch"> | #{messages.branch} | </h:outputLabel> | | <s:decorate id="branchDecoration"> | <h:selectOneMenu value="#{branchHome.instance.name}"> | <s:selectItems value="#{branchList.resultList}" var="branch" label="#{branch.name}" /> | <s:convertEntity/> | <a:support event="onchange" reRender="categoryDecoration" ajaxSingle="true" action="#{categoryHome.loadAllCategories()}"/> | </h:selectOneMenu> | </s:decorate> | | | <h:outputLabel for="category"> | #{messages.category} | </h:outputLabel> | | <s:decorate id="categoryDecoration"> | <h:selectOneMenu value="#{categoryHome.instance.name}" > | <s:selectItems value="#{categoryHome.categoryList}" var="category" label="#{category.name}" /> | <s:convertEntity/> | </h:selectOneMenu> | </s:decorate> | | </h:form> | everything works fine. Could anybody explain me why there is such a problem with <s:selectItems> and what are possible solutions for that. Thanks for help in advance. (I use Seam 2 CR1 + JBoss AS 4.2.0) Best regards, jquery View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4086513#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...