How to set dynamically row data in datatable

Question

hi All.
i have a datatable with columns and listeners as below.
//pstBildirimAyrList.jsp
<h:dataTable id="table1"
value="#{pc_PstBildirimAyrList.pd_pstBildirimAyrListData.pstBildirimAyrBean}"
var="varpstBildirimAyrBean" >
<h:column id="column8">
<f:facet name="header">
<h:outputText styleClass="outputText" value="Personal ID" id="text15"/>
</f:facet>
<h:inputText id="bki_birey_id"
     value="#{varpstBildirimAyrBean.bki_birey_id}"
     styleClass="inputText"                         onchange="this.form.submit();"
     valueChangeListener="#{pc_PstBildirimAyrList.changeValuesForId}"
     immediate="true" >
          <hx:validateConstraint regex="DigitOnly" />
</h:inputText>
</h:column>
<h:column id="column9">
<f:facet name="header">
<h:outputText styleClass="outputText" value="Name" id="text17"/>
</f:facet>
<h:inputText id="bki_birey_adi" value="#{varpstBildirimAyrBean.adi}"
     styleClass="inputText" maxlength="50" required="true"
style="text-align: left">
</h:inputText>
</h:column>
</h:dataTable>
//faces-config file is
<managed-bean>
     <managed-bean-name>pc_PstBildirimAyrList</managed-bean-name>
     <managed-bean-class>pagecode.pst.PstBildirimAyrList</managed-bean-class>
     <managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<managed-bean>
     <managed-bean-name>pd_pstBildirimAyrListData</managed-bean-name>
     <managed-bean-class>com.vadi.pst.data.PstBildirimAyrData</managed-bean-class>
     <managed-bean-scope>session</managed-bean-scope>
</managed-bean>
if i changed bki_birey_id((UIInputText)) value, i want to change automatically (by searching in Database) bki_birey_adi (UIInputText) .
For this reason, I added a listener to bki_birey_id. its code is below.
PstBildirimAyrList.java
public void changeValuesForId(ValueChangeEvent valueChangedEvent) {
     HtmlDataTable dt = (HtmlDataTable) (facesContext
                         .getViewRoot()
                         .findComponent("form1")
                         .findComponent("table1"));
     PstBildirimAyrBean pstBildirimAyrBean = (PstBildirimAyrBean) dt.getRowData();
     if (valueChangedEvent.getComponent().getId().equals("bki_birey_id")) {
          HtmlInputText birey_id = (HtmlInputText) dt.findComponent("bki_birey_id");
          HtmlInputText birey_adi = (HtmlInputText) dt.findComponent("bki_birey_adi");
          HtmlInputText birey_soyadi = (HtmlInputText) dt.findComponent("bki_birey_soyadi");
          try {
               BkiBireyBean bkiBireyBean =
                    (new BkiBireyDBAO()).fetchByPrimaryKey(
               Long.parseLong(birey_id.getValue().toString()));
               birey_adi.setValue(bkiBireyBean.getAdi());
               birey_soyadi.setValue(bkiBireyBean.getSoyadi());
          } catch (Exception e) {
               birey_adi.setValue("-");
               birey_soyadi.setValue("-");
it's look like true. but When page is return, bki_birey_adi is not set.
what's wrong?
please help me.
Thanks in advance.
Note : i'm sorry for down spelling.

Answer 1

Create a binding for your dataTable.
In the binding create a UIData element with gettters and setters.
You can manipulate rows and columns from it.