Hi Sri, > > Looking at your multibox logic, is the 'rol' property in the > 'userDataBean' an array of Strings? This should represent the > value(s) that the user selects -- so, if the initial setting is > all boxes un-checked, this will be an empty String[].
Yes, the rol is a String[]. It works OK when I present the HTML form the first time. Afterwards I can't present it because the rolesPosibles doesn't exist. > > Are you modifying/setting your ArrayList (rolesPossibles) in the > reset? I don't see how else it can become null. This list, as > you know, represents all the possible checkbox values. The only thing I modify in the reset is the userDataBean.rol (and I have tried too to erase the reset function). I modify the roles posibles only in the set. > > I don't know if the above helped. Another source of information > is the html-multibox.jsp that is part of the > struts-exercise-taglib application that ships with Struts. > > Sri > Thanks for your help. I will take a look to the source of multibox to see if this help. It's a strange thing that. I've done a lot of HTML forms with Struts and never had encounter this problems. Thanks again! Miguel > > -----Original Message----- > From: M�guel �ngel Mulero Mart�nez > [mailto:[EMAIL PROTECTED]] > Sent: Monday, November 18, 2002 2:06 AM > To: Struts Users Mailing List > Subject: RE: ArrayList disappeared in ActionForm > > > Hi all! > > Thanks to both for your reply. Sorry for my late reply (and my > poor english) but in the weekend I can't write to the group. > > Here some code of my classes (comments are in spanish, sorry): > > > My ActionForm has: > > ------------------------------------ > public class FichaUsuarioActionForm extends ActionForm { > > .... > > > /** Datos del usuario */ > > private FichaUsuarioDataBean ficha; > > /** Roles posibles para situar en el formulario */ > > private ArrayList rolesPosibles; > > > > public FichaUsuarioActionForm() { > > log.debug("Constructor iniciado"); > > ficha = new FichaUsuarioDataBean(); > > log.debug("Constructor finalizado"); > > } > > > > public FichaUsuarioDataBean getUserDataBean() { > > log.debug("getUserDataBean ejecutado"); > > return ficha; > > } > > > > public void setUserDataBean(FichaUsuarioDataBean user) { > > log.debug("setLoginDataBean ejecutado"); > > ficha = user; > > } > > > > public ArrayList getRolesPosibles() { > > log.debug("getRolesPosibles ejecutado"); > > return rolesPosibles; > > } > > > > public void setRolesPosibles(ArrayList _roles) { > > log.debug("setRolesPosibles ejecutado"); > > rolesPosibles = _roles; > > } > > ..... > > } > > ----------- > > > ficha is used to retrieve the values of a HTML form. > rolesPosibles is an ArrayList that I must use in the same HTML > form (in a multicheck tag). They are private, so I must set its > values using the setXXXX function, and this function writes to > the log a message. The constructor writes to the log too. > > > In the Action before the HTML form, I use the setRolesPosibles() > to put an inicial ArrayList. > > My HTML form is in the way (login/editarUsuario.jsp): > > -------------- > > <html:form action="/modificaUsuarioAction.do" > focus="userDataBean.user" enctype="multipart/form-data"> > > <html:text name="fichaUsuario" property="userDataBean.user" > size="60" /> > > ...... > > <logic:iterate name="fichaUsuario" property="rolesPosibles" > id="elementoListadoRoles"> > > <html:multibox name="fichaUsuario" property="userDataBean.rol"> > > <bean:write name="elementoListadoRoles" property="string1"/> > > </html:multibox> > > <bean:write name="elementoListadoRoles" property="string2" /><br> > > </logic:iterate> > > ...... > > ------------ > > > So I use the rolesPosibles to put a list of checkbox in my HTML > form. The struts-config.xml is like: > > ----------- > > > > .... > > <form-bean name="fichaUsuario" > > > type="es.mulria.bonsai.login.actionform.FichaUsuarioActionForm"/> > > .... > > <action path="/modificaUsuarioAction" > > type="es.mulria.bonsai.login.action.ModificarUsuariosAction" > > name="fichaUsuario" > > input="/login/editarUsuario.jsp" > > validate="true"> > > </action> > > ... > > ----------- > > > My problem is that if the validate() of the ActionForm has > errors, and returns to the HTML form, the ArrayList rolesPosibles > has disappear (null), but the ficha not, and has all the values > the user puts in the HTML form. The log is like (I only put the > ActionForm log): > > ---------- > > > > # The Action before the JSP creates the ActionForm with the > ArrayList, and puts it in the request > > 15 nov 2002 19:25:54,280 [Thread-7] DEBUG > es.mulria.bonsai.login.actionform.FichaUsuarioActionForm - > Constructor iniciado > > 15 nov 2002 19:25:54,280 [Thread-7] DEBUG > es.mulria.bonsai.login.actionform.FichaUsuarioActionForm - > Constructor finalizado > > 15 nov 2002 19:25:54,340 [Thread-7] DEBUG > es.mulria.bonsai.login.actionform.FichaUsuarioActionForm - > setRolesPosibles ejecutado > > .... > > > > # Here rolesPosibles has an ArrayList. I can see it if I print it > in the log. > > > > # Now, the JSP prints all the values in the HTML form (they are > in the UserDataBean > > 15 nov 2002 19:25:54,431 [Thread-7] DEBUG > es.mulria.bonsai.login.actionform.FichaUsuarioActionForm - > getUserDataBean ejecutado > > 15 nov 2002 19:25:54,511 [Thread-7] DEBUG > es.mulria.bonsai.login.actionform.FichaUsuarioActionForm - > getUserDataBean ejecutado > > .... > > > > # To put the list of checkbox in the page, it calls the ArrayList > > 15 nov 2002 19:25:54,561 [Thread-7] DEBUG > es.mulria.bonsai.login.actionform.FichaUsuarioActionForm - > getRolesPosibles ejecutado > > .... > > > > # All OK, the ArrayList continues in the ActionForm, and the JSP > is displayed. > > > > # Now, I submit it. Struts takes the UserDataBean to put the > values, the problem is that now, the ArrayList doesn't exist (is > null), Without calling the constructor and without calling the > setXXXXX (the log don't appear). How can Struts change the > ArrayList without calling any of that? Of course, the others > functions in the class don't use the ArrayList for nothing. > > > > 15 nov 2002 19:26:50,301 [Thread-7] DEBUG > es.mulria.bonsai.login.actionform.FichaUsuarioActionForm - > getUserDataBean ejecutado > > ------- > > So, if the validate has some error and returns to the JSP, it has > an error when tries to retrieve the ArrayList of checkbox (null). > > > Some idea? Thanks for read all this (and sorry for my english) > > > Miguel > > -----Mensaje original----- > De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > Enviado el: viernes, 15 de noviembre de 2002 15:48 > Para: [EMAIL PROTECTED] > Asunto: RE: ArrayList disappeared in ActionForm > > > Hi, > I didnt understand your problem very well.But some points U should know. > > > I use the log4j, and the constructor of the ActionForm isn't called. > > The setXXXX for the ArrayList isn't called too. > > Struts uuses Class.forName() .newInstance() to instantiate new > form objects. So the default constructor will be called in this > case.So Any lists etc u need to set must Be initialised in the > default constructor. > > -----Original Message----- > From: Sri.Sankaran [mailto:[EMAIL PROTECTED]] > Sent: Friday, November 15, 2002 3:18 PM > To: struts-user > Subject: RE: ArrayList disappeared in ActionForm > > > Intermixed... > > > -----Original Message----- > > From: M�guel �ngel Mulero Mart�nez > > [mailto:[EMAIL PROTECTED]] > > Sent: Friday, November 15, 2002 2:03 AM > > To: Lista Struts > > Subject: ArrayList disappeared in ActionForm > > > > > > Hi all! I've got a little problem with Struts 1.0.2. > > > > I've got an ActionForm with two objects: one for save the values of a > > HTML form, and an ArrayList with Strings to print in the HTML form. > > I don't follow. Why do you need separate objects for display and > for capture. That is the purpose of the ActionForm. > > > > > The HTML form inits well, reading the values (object and > > ArrayList) from the ActionForm created in an Action before. When I > > press the submit button, the reset function is called and afterwards > > the object is updated with the new values. My problem is that if I > > read the ArrayList, it is null. > > How do the objects in your ActionForm map to your ArrayList. > Need to see some code. Send appropriate sections of your JSP, > form-bean (ActionForm) and Action class. > > > > > I use the log4j, and the constructor of the ActionForm isn't called. > > The setXXXX for the ArrayList isn't called too. > > > > Where is my ArrayList? Why it's null? > > > > Thanks to all! > > > > Miguel > > > > Sri > > > > > > > -- > > To unsubscribe, e-mail: > > <mailto:struts-user-> [EMAIL PROTECTED]> > > For > > additional commands, > > e-mail: <mailto:[EMAIL PROTECTED]> > > > > > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
