Unable to process expanded row data in primefaces datatable - jsf

Question

This is my xhtml code containing a datatable using row expansion. Using primefaces 4.0, jsf mozarra 2.2.4
<p:dataTable id="myTable" value="#{myBean.lazyModel}" var="dd"
rowKey="#{dd.hashCode()}" paginator="true"
selection="#{myBean.myModel.selectedRecords}" rows="#{myBean.pageSize}"
paginatorPosition="top"
paginatorTemplate="{CurrentPageReport} {FirstPageLink}
{PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="5,10,20,50,100" widgetVar="dataTable"
currentPageReportTemplate="(Number of Records: {totalRecords})"
lazy="true">
<p:ajax event="rowToggle" listener="#{myBean.onRowToggle}" process="#this"/>
<p:column>
<p:rowToggler />
</p:column>
<p:column selectionMode="multiple" id="select" />
<p:column id="cpn" headerText="#{messages['cpn']}"
filterMatchMode="contains" sortBy="#{dd.cpn}" filterBy="#{dd.cpn}">
<p:inputText id="cpnid" value="#{dd.cpn}" />
</p:column>
<p:column id="user" headerText="#{messages['user']}"
filterMatchMode="contains" sortBy="#{dd.number}"
filterBy="#{dd.number}">
<p:inputText id="addid" value="#{dd.number}" />
</p:column>
:
:
<p:rowExpansion id="rowExpansion">
<p:panelGrid>
<p:row>
<p:column>
<h:outputText value="#{messages['name']}" />
</p:column>
<p:column>
<p:inputText id="name" name="txtBox" value="#{dd.name}" />
</p:column>
<p:column>
<h:outputText value="#{messages['ageGroup']}" />
</p:column>
<p:column id="agecol">
<p:selectOneMenu id="agegrp" value="#{dd.agegrp}">
<f:selectItem itemLabel="21-25" itemValue="21-25" />
<f:selectItem itemLabel="26-30" itemValue="26-30" />
</p:selectOneMenu>
</p:column>
</p:row>
</p:panelGrid>
</p:rowExpansion>
</p:dataTable>
Now I expanded a row and entered name and selected age group and collapsed the row. If I reexpand the same row I couldn't see the values I have entered. When I debugged on collapsing the row The name field and age grp fields setters are called with null parameters.
If I remove the ajax rowToggle event then there is no request is sent to the server on row collapse.
All the examples I found are showing only static data on row expansion.
Is there any way to process data user entered on row collapse?
Any help is highly appreciated.

Answer 1

I had the same problem. Do you use this datatable in a dialog?
Try set dynamic=false in parent dialog.
Dynamic dialog may override your ajax request

Answer 2

Try to add <p:ajax partialSubmit="true" /> inside each input forms

Answer 3

Just remove sortBy from child table.
It's works to me.
Or,
In xhtml file (MasterDataTable):
<p:ajax event="rowToggle" listener="#{superView.ontoggle()}" />
On View file:
public void ontoggle() {
UIComponent table = FacesContext.getCurrentInstance().getViewRoot().findComponent("form:MasterDataTable:ChildDataTable");
if (table != null) {
table.setValueExpression("sortBy", null);
}
}