Hello, i am really confused now - there can be only a small mistake ... :-(( If i have no getter and setter for right, the app is running, but after submitting the form, the right-object is null (of course) if i set the getter and setter for right, i get: [Servlet-Fehler]-[BeanUtils.populate]: java.lang.NullPointerException In this example, <logic:iterate id="right" name="authRightForm" property="objectNames"> right and objectName must be the same, or not? objectNames is the ArrayList (or Array) of my right-objects, but with which property is id mapping? because i get in the request the names right[xx].a, right[yy].a, ... Because in my form-bean i only have a list of objects (e.g. ObjectNames), this is an arraylist. But when i use objectName as property and also objectName as id (which maps to my objectNames Arraylist in the form), i get Error 500: ServletException in 'layout_inside.jsp': ServletException in 'authright-body.jsp': Cannot create iterator for this collection (after the 29th entry on the webpage ...?!?!?!!?) In you example, do i have to have a property called right in my actionform, if yes, what type? thanks a lot for help Hans
_____ Von: Brian Holzer [mailto:[EMAIL PROTECTED] Gesendet: Donnerstag, 23. Februar 2006 21:53 An: struts-user@jakarta.apache.org Betreff: Fwd: AW: logic:iterate Hey Hans, I'll give this another try. I think you are right and you don't need the nested tags for this situation. First off, it says in the docs that an Array will work with this tag, but I've only used ArrayLists. I don't forsee any differences in how the tag works with either. First off your properties (a, b, c) need to be defined as Strings and not Integers. So I'm guessing that you have an object definition like so after the above changes. public class ObjectName { public String a; public String b; public String c; methods..... } in your ActionForm you have an Array defined which will hold a number of these ObjectName instances and a getter getObjectNames(). Your jsp should look like the following: <logic:iterate id="right" name="authRightForm" property="objectNames"> <tr> <td>LabelForObject: </td> <td> <html:radio name="right" property="a" value="0" /> <html:radio name="right" property="a" value="1" /> <html:radio name="right" property="a" value="2" /> </td> <td> <html:radio name="right" property="b" value="0" /> <html:radio name="right" property="b" value="1" /> <html:radio name="right" property="b" value="2" /> </td> <td> <html:radio name="right" property="c" value="0" /> <html:radio name="right" property="c" value="1" /> <html:radio name="right" property="c" value="2" /> </td> </tr> </logic:iterate> Give this a try, I think this is what you are looking for. ------------------------------------------------------------ Brian Holzer IT Analyst Saskatchewan Government Insurance email: [EMAIL PROTECTED] phone: (306) 751-1629 fax: (306) 569-7683 >>> "Hans-Peter Petek" <[EMAIL PROTECTED]> 23/02/2006 9:12:47 am >>> Hi, i don´t think so, because i do not have a "department -> customer" structure (1 to many structure). i only have a list of objects, each object has 3 properties (a, b, c) of type integer (a,b,c can have a value from 0 to 2). I want to display a list of these ojects and 3 groups of either 3 radio-buttons. if the value of a is 2, the last radio-button of the first group is selected, if the value of c is 0, the first radio-button of the 3rd group is selected ... OBJECT1 0 1 2 0 1 2 0 1 2 (0,1 and 2 is always a group, i can select one of the entry, 0 or 1 or 2 in each group -> so i will get for a, b, and c a value of 0, 1, or 2) OBJECT2 ... ... To display this is not the problem, this is alread working, my ActionForm has a property of "rights" which in an Array of my objects. private Right[] rights; The problem is, when i´m submitting the form, i do not get the valus, the array is either null, or, if i use the modified version (see below) i get a [BeanUtils.populate]: java.lang.NullPointerException :-(( Can anyone help me in this case? Or does the nested-tag really is required for that - but i dont think so ... it has to work with iterate too, doesn´t it? thanks in advance Hans _____ Von: Brian Holzer [mailto:[EMAIL PROTECTED] Gesendet: Donnerstag, 23. Februar 2006 15:15 An: struts-user@jakarta.apache.org Betreff: Fwd: logic:iterate Hey Hans, I think you might want to use the nested tags for what you are trying to do. Depending on the version of struts you are using, the nested taglib could be included with the Struts distribution. Here is a link to some tutorials etc. on the nested tags http://www.keyboardmonkey.com/next/index.jsp ------------------------------------------------------------ Brian Holzer IT Analyst Saskatchewan Government Insurance email: [EMAIL PROTECTED] phone: (306) 751-1629 fax: (306) 569-7683 >>> "Hans-Peter Petek" < [EMAIL PROTECTED] > 23/02/2006 4:24:12 am >>> Hi, does anyone knows a really good docu (with examples) how to use the iteration (with indexed tags)? Because my indexed iteration is not working, the first time the values are fine (loading), but after submitting the data, the changes are not mapped to the array (or arraylist). Here is the problem again, maybe someone knows a good doc or has an idea ...? I have modified the iteration from <logic:iterate id="right" ... to <logic:iterate id="rightlist_ary" ... because that's my array I want to have filled, but after submitting the form I get ... [BeanUtils.populate]: java.lang.NullPointerException any ideas? help would be great, thanks. *** *** *** i have a problem with the logic:iterate tag ... i want to show a list of objects (which habe attributes with values of 0 or 1 or 2) I want to show them in a list of radio-elements OBJECT 1 0 1 2 0 1 2 0 1 2 OBJECT 20 1 2 0 1 2 0 1 2 ... where 0,1,2 is a radio-element (one of 0 or 1 or 2 can be choosen). public class AuthRightForm extends ActionForm { private Right[] rightlist_ary; get / set ... // after loading rightlist_ary = new Right[10]; // filling rightlist_ary from DB ... ... <logic:iterate id="right" name="authRightForm" indexId="idx" property="rightlist_ary"> <tr> <logic:present name="right"> <logic:notEmpty name="right"> <td><bean:write name="right"/>, Index = <bean:write name="idx"/> <td><html:radio name="right" property="val_owner" value="0" indexed="true"/></td> <td><html:radio name="right" property="val_owner" value="1" indexed="true"/></td> <td><html:radio name="right" property="val_owner" value="2" indexed="true"/></td> </td> </logic:notEmpty> </logic:present> </tr> </logic:iterate> The displaying of the values is working, so if Object 1, property 1 has a value of 2, the 3rd radio-element is selected - this works fine. But, after submitting the form, I do not see the changed values (if I change the radio-buttons). The value of rightlist_ary is always null - so I do not see any objects in the list any more. The request-object has values like that: right[3].val_owner -> 1 right[2].val_owner -> 2 right[1].val_owner -> 1 ... Does anyone has a solution for that? Thanks a lot HP **********DISCLAIMER********** This e-mail and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you are not the named addressee, please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. 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