Update a data table after click button with primefaces - primefaces

Question

I have a dataTable, saving button, form.
When I click on the save button, a confirm dialog is shown with two choices: "yes" or "no".
My problem is when I click "yes" to confirm saving my datable is not updated.
I want to show the data in my DataTable without refreshing the page.
<p:commandButton value="#{msg['Save']}" icon="ui-icon-disk"
actionListener="#{cashMvtView.saveCashMvt()}">
<p:confirm header="Confirmation" message="Voulez-vous enregistrer ces informations ?" icon="ui-icon-alert" />
</p:commandButton>
<p:confirmDialog global="true" showEffect="fade" hideEffect="fade" >
<p:commandButton value="Yes" type="button" styleClass="ui-confirmdialog-yes" icon="ui-icon-check" update="form2" >
</p:commandButton>
<p:commandButton value="No" type="button" styleClass="ui-confirmdialog-no" icon="ui-icon-close" />
</p:confirmDialog>
the Datatable code:
<h:form id="form2">
<p:accordionPanel activeIndex="0">
<p:tab title="Recherche" id="tabRech">
<p:dataTable var="cashMvt" value="#{cashMvtView.listeFilteredCashMvt}"
selectionMode="single" filteredValue="#{cashMvtView.listeFilteredCashMvt}"
selection="#{cashMvtView.selectedCashMvt}"
rowKey="#{cashMvt.id}" tableStyle="width:auto"
paginator="true" widgetVar="tabRecherche" id="tabRecherche"
paginatorPosition="bottom" rows="14"
paginatorTemplate="{Exporters} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink}
{RowsPerPageDropdown} {JumpToPageDropdown} {Controle}"
>
<p:ajax event="rowSelect" listener="#{cashMvtView.onRowSelect}" update="form form2" id="ajaxRS" />
<f:facet name="{Controle}" id="facetControle">
<p:commandButton id="toggler" type="button" value="Column" icon="ui-icon-calculator" style="float:right; width: 150px;"/>
<p:columnToggler datasource="tabRecherche" trigger="toggler" id="ccc" />
</f:facet>
<p:column style="white-space: nowrap" headerText="#{msg['NumMvt']}" sortBy="#{cashMvt.id}" ><h:outputText value="#{cashMvt.id}" /> </p:column>
<p:column style="white-space: nowrap" headerText="#{msg['CatMvt']}" sortBy="#{cashMvt.category}" ><h:outputText value="#{cashMvt.category}" /> </p:column>
<p:column style="white-space: nowrap" headerText="#{msg['mvtReference']}" sortBy="#{cashMvt.mvtReference}" ><h:outputText value="#{cashMvt.mvtReference}" /> </p:column>
<p:column style="white-space: nowrap" headerText="#{msg['Status']}" sortBy="#{cashMvt.stat}" ><h:outputText value="#{cashMvt.stat}" /> </p:column>
<p:column style="white-space: nowrap" headerText="#{msg['mvtCode']}" sortBy="#{cashMvt.mvtCode}" ><h:outputText value="#{cashMvt.mvtCode}" /> </p:column>

Answer 1

You should add update="tabRecherche" to your <p:commandButton tag:
<p:commandButton value="#{msg['Save']}"
icon="ui-icon-disk"
actionListener="#{cashMvtView.saveCashMvt()}"
update="tabRecherche"
>
<p:confirm header="Confirmation"
message="Voulez-vous enregistrer ces informations ?"
icon="ui-icon-alert" />
</p:commandButton>