Thanks for the reply. I scraped the original code and replaced it with my own implementation using Map. I will experiment your suggestions in the next opportunity.
rgds Antony Paul ----- Original Message ----- From: "Matt Bathje" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Tuesday, September 14, 2004 7:14 PM Subject: Re: Need example of using DynaActionForm with ArrayList (1.1) > Antony Paul wrote: > > Hi all, > > Sorry if it is a repost. > > Using Struts 1.1. > > I have an ActionForm in which displays an array of items. I want to use > > DynaValidatorForm here which uses ArrayList as property holders. I am able > > to pre-populate the form. I have trouble in displaying the values and on > > submission nothing is populated. If somebody can give an example it will be > > very useful to me. > > > > Struts-config.xml > > ------------------ > > <form-bean name="PriceForm" > > type="org.apache.struts.validator.DynaValidatorForm"> > > <form-property name="productid" type="java.util.ArrayList"/> > > <form-property name="productdesc" type="java.util.ArrayList"/> > > </form-bean> > > > > JSP > > --- > > logic:iterate name="PriceForm" property="productid" id="pid" > > indexId="index"> > > <tr> > > <//html:hidden property='<%="productid["+index+"]"%>'/> > > <td><html:text property="productdesc" indexed="true"/> > > > > <td><//html:text property='<%="productdesc["+index+"]"%>'/> > > > > </tr> > > </logic:iterate> > > > > I tried using indexed attribute. Then HTML generated is > > > > <input type="text" name="org.apache.struts.taglib.html.BEAN[0].productdesc" > > value="[product desc 0]"> > > > > See the value is in braces. > > > > If I use <html:text property="productdesc" indexed="true"/> I get > > > > java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 > > > > What is wrong ?. > > > > rgds > > Antony Paul > > Antony - I've never done this with an arraylist myself, just arrays - > but in my experience the error you are getting comes up when struts > can't figure out the length of the collection you are trying to iterate > over. This usually happens when the form is being put in the request > scope and not in the session scope. > > Is it possible you could post the relevant portions of your "loader" > class, as well as the action mappings for the loader and submit forms? > > The other alternative you may have is to look into using Niall's > LazyList implementation. It is supposed to get rid of a lot of > headache's like that. (Just google for struts lazylist and you'll see > what you need.) > > Matt > > > > --------------------------------------------------------------------- > 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]
