Ah, in the "modern" world of AJAX and the like, enclosing forms many times are no longer much use. I wouldn't say it does much harm to still do it in most cases, it just becomes somewhat superfluous.
Maybe you have a <select> who's purpose is to change the contents of a <div> by firing off an AJAX event. No form to submit, so there isn't much benefit to having that <select> in a form. But again, probably not much harm in most cases. -- Frank W. Zammetti Founder and Chief Software Architect Omnytex Technologies http://www.omnytex.com AIM: fzammetti Yahoo: fzammetti MSN: [EMAIL PROTECTED] On Mon, December 12, 2005 3:46 pm, Laurie Harper said: > The documentation for html:select states that, 'This tag is only valid > when nested inside a form tag body.' It *might* work without an > enclosing html:form tag, but you would need to tell the > html:optionsCollection tag where to lookup the 'system_href' property. > Try adding name="availableSystem" to the html:optionsCollection tag. > > I'm not sure why you're using html:select / html:optionsCollection > without an enclosing form in the first place, though. What use is a > select list outside a form? > > L. > > Leung Ping Cheung wrote: >> Should the jsp be tied to a form for this case? >> >> I do not make up a form. >> I do this in the jsp. >> <% >> List availableSystemList = >> UserSystemService.getInstance().getAvailableSystemList(request.getRemoteUser()); >> request.setAttribute("availableSystem", availableSystemList); >> %> >> >> <html:select property="availableSystem"> >> <html:optionsCollection property="system_href"/> >> </html:select> >> >> where system_href is one of the attributes of availableSystem. >> >> I get the error message of >> >> ERROR - Servlet.service() for servlet jsp threw exception >> javax.servlet.jsp.JspException: Cannot find bean under name >> org.apache.struts.taglib.html.BEAN >> at >> org.apache.struts.taglib.html.SelectTag.calculateMatchValues(SelectTag.java:240) >> at >> org.apache.struts.taglib.html.SelectTag.doStartTag(SelectTag.java:200) >> at >> org.apache.jsp.user.assignUserSystem_jsp._jspx_meth_html_select_0(org.apache.jsp.user.assignUserSystem_jsp:123) >> at >> org.apache.jsp.user.assignUserSystem_jsp._jspService(org.apache.jsp.user.assignUserSystem_jsp:82) >> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) >> >> >> >> On 12/8/05, Keith Sader <[EMAIL PROTECTED]> wrote: >>> You need to make use of the html:optionsCollection tag >>> >>> <html:select property="yearOfManufacture"> >>> <html:optionsCollection property="years"/> >>> </html:select> >>> >>> In your form bean you need an object that has the properties label and >>> value. Like this: >>> >>> public class ComboBoxItem implements Serializable, Comparable { >>> private String label; >>> private String value; >>> >>> // This is the contract for html:optionsCollection, label is >>> what is >>> // displayed on the form, and value is the code behind it. >>> public ComboBoxItem(String label, String value) { >>> this.label = label; >>> this.value = value; >>> } >>> >>> public String getLabel() { >>> return label; >>> } >>> public String getValue() { >>> return value; >>> } >>> >>> public int compareTo(Object o) {...} >>> >>> Then, in your populate action, you'll set a Collection<ComboBoxItem> >>> on the form. That should to it. >>> >>> On 12/8/05, Leung Ping Cheung <[EMAIL PROTECTED]> wrote: >>>> I think there are many people asking the same question. But I cannot >>>> find the answer. any web sites have more or less coding example of >>>> populating a dropdown box or list in a Struts way before the web page >>>> displays. >>>> >>>> Thanks >>>> >>> >>> -- >>> Keith Sader >>> [EMAIL PROTECTED] >>> http://www.saderfamily.org/roller/page/ksader >>> http://www.jroller.com/page/certifieddanger >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: [EMAIL PROTECTED] >>> For additional commands, e-mail: [EMAIL PROTECTED] >>> >>> > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
