You should set scope of the bean as session. > -----Original Message----- > From: Joel [mailto:[EMAIL PROTECTED] > Sent: Sunday, August 24, 2003 11:59 AM > To: [EMAIL PROTECTED] > Subject: DynaForm Beans and Indexed Text fields. > > > I'm having a problem using Indexed text fields with DynaActionForms. I > can make a jsp display my indexed text fields just fine using the > <logic:iterate> and <html:text> custom tags. The problem is when I > submit the form, there is a problem populating the DynaActionForm with > my indexed text values. I'm wondering if the problem is the fact that > the collection used is a java.util.List populated with by own custom > beans, each bean containing three String fields with their own > getters/setters. I'm wondering if I can use DynaActionForms in this > instance. Below is a copy of my DynaActionForms Config, the jsp code > that utilizes the form and the error message I get when the form is > submitted. Any input would be of great help. > > Thanks, > > Joel. > > > Here's my DynaActionForm Bean declaration in struts-config.xml: > > <form-bean > name="persistRateInfo" > type="org.apache.struts.action.DynaActionForm"> > > <!-- Specify the dynamic properties of the form --> > <form-property name="hazardInsRate" type="java.lang.String"/> > <form-property name="dealOneTerm" type="java.lang.String"/> > <form-property name="dealOneIR" type="java.lang.String"/> > <form-property name="dealOnePercentageDown" type="java.lang.String"/> > <form-property name="dealTwoTerm" type="java.lang.String"/> > <form-property name="dealTwoIR" type="java.lang.String"/> > <form-property name="dealTwoPercentageDown" type="java.lang.String"/> > <form-property name="dealThreeTerm" type="java.lang.String"/> > <form-property name="dealThreeIR" type="java.lang.String"/> > <form-property name="dealThreePercentageDown" type="java.lang.String"/> > <form-property name="pmiRanges" type="java.util.List"/> > </form-bean> > > Here's the loop I use in the jsp that needs to display the values of > pmiRanges. of the form bean: > > <logic:iterate id="pmiRanges" name="persistRateInfo" property="pmiRanges"> > <tr> > <td style="font-family: sans; font-size: 12;" width="100">Low: </td> > <td style="font-family: sans; font-size: 12;"> > <html:text name="pmiRanges" property="low" indexed="true" size="5"/> > </td> > > <td style="font-family: sans; font-size: 12;" width="100">High: </td> > <td style="font-family: sans; font-size: 12;"> > <html:text name="pmiRanges" property="high" indexed="true" size="5"/> > </td> > > <td style="font-family: sans; font-size: 12;" width="100">Rate: </td> > <td style="font-family: sans; font-size: 12;"> > <html:text name="pmiRanges" property="rate" indexed="true" size="5"/> > </td> > </tr> > </logic:iterate> > > Now I use a Struts Action to preload this form bean with values from a > database. It does this fine. When the jsp is called for the first time, > it utilizes the form bean, and the List perfectly and displays the > indexed text fields just like I want it to. here is an example row of > rendered text fields: > > <tr> > <td style="font-family: sans; font-size: 12;" width="100">Low: </td> > <td style="font-family: sans; font-size: 12;"> > <input type="text" name="pmiRanges[0].low" size="5" value="10.0"> > > </td> > > <td style="font-family: sans; font-size: 12;" width="100">High: </td> > <td style="font-family: sans; font-size: 12;"> > <input type="text" name="pmiRanges[0].high" size="5" value="15.0"> > </td> > > <td style="font-family: sans; font-size: 12;" width="100">Rate: </td> > <td style="font-family: sans; font-size: 12;"> > > <input type="text" name="pmiRanges[0].rate" size="5" value="5.7"> > </td> > </tr> > > The problem comes in when I try to submit the form to save the form > values. It doesn't seem that the form bean can be populated with > the indexed values. I get the follwoing Exception: > > ? > > java.lang.NullPointerException: No indexed value for 'pmiRanges[0]' > at > org.apache.struts.action.DynaActionForm.get(DynaActionForm.java:293) > at > org.apache.commons.beanutils.PropertyUtils.getIndexedProperty(PropertyUt il > s.java:474) > at > org.apache.commons.beanutils.PropertyUtils.getIndexedProperty(PropertyUt il > s.java:428) > at > org.apache.commons.beanutils.PropertyUtils.getNestedProperty(PropertyUti ls > .java:770) > at > org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.jav a: > 801) > at > org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:881) > at > org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:808) > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED]
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