If you set 'validate="true"' in your action mapping, of course you will have this error because the validation in that case will fail, it will SKIP the action and go straight to the "input" (JSP) attribute for error displaying. This setup would skip the action execute() method and no "eventTypes" object would have been put into request scope for the JSP to see/find/use. If you are doing it that way, I recommend you set 'validate="false"' and add the call for validation into your execute() method to ensure you always create your "eventTypes" vector/object before you invoke validation (manually invoking validation in this case).
If "eventTypes" never changes, you would be better off creating a ServletContextListener to initialize the vector and put it in Application scope for every JSP to use without recreating it every time. I suggest this since the names "StartFailure" and "LowMemory" label names sound like something you would probably keep constant for all users. Regards, David -----Original Message----- From: Pankaj Gupta [mailto:[EMAIL PROTECTED] Sent: Saturday, June 17, 2006 12:29 AM To: user@struts.apache.org Subject: Problem with prepoulating form Hi, I am facing a problem with prepoulating the form. I am using following code to prepopulate the form in my Action class: Vector eventTypes = new Vector(); eventTypes.add(new LabelValueBean("StartFailure", "Value 0")); eventTypes.add(new LabelValueBean("LowMemory", "Value 1")); request.setAttribute("eventTypes", eventTypes ); and the following code in my jsp: <html:select property="eventTypes" size="2" titleKey=" alarmEventFilter.selectKey.eventType" multiple="true"> <html:options collection="eventTypes" property="value" labelProperty="label" /> </html:select><html:errors property="eventType"/><br/> The application works well when the validate() returns null but when the validate() returns errors, it gives the following error: SEVERE: Servlet.service() for servlet jsp threw exception * javax.servlet.jsp.JspException*: Cannot find bean under name *eventTypes* I have no clue about it. Pl help. regards, Pankaj ** --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
