How update just specific cell in primefaces dataTable
java, jsf-2, primefaces
Solution
Just use `update="valorTotalItem"`. It's relative to the current row already.
So, replace
<p:ajax ... update="lancamentoNF:popupLancamentoNF:tabelaItensNF:#{indice}:valorTotalItem" />
by
<p:ajax ... update="valorTotalItem" />
Problem
I'm creating a dynamic datatable full of input fields. Sometimes when user insert values in some inputs, an specific cell should be updated, and only this cell. I thought it could be simple, but yet didn't make it work. The cell I want update is "valor total", this cell should be updated when the value of two others cell change: EDITED I've tryied f:ajax with complete id and got "Component with id:lancamentoNF:popupLancamentoNF:tabelaItensNF:0:valorTotalItem not found". Changed to p:ajax and no errors happen but it doesn't update!! ``` <h:panelGroup id="painelItensNF" layout="block" styleClass="hrgi-div-form aba-lancamento-nf clearfix" style="overflow:auto;"> <h:panelGroup layout="block" style="width: 1700px;"> <p:dataTable id="tabelaItensNF" value="#{modeloTabelaDinamicaItemNF.itens}" var="itemEmbrulhado" styleClass="tabelaDinamica" height="174" style="width: 100%;" rowIndexVar="indice"> ... (some columns) <p:column style="width: 5%" headerText="quantidade"> <hrgi:spinner id="quantidadeItem" value="#{itemEmbrulhado.item.produto.detalheTributavel.quantidade}" dinheiro="false" fator="#{itemEmbrulhado.item.produto.detalheTributavel.unidadeFracionada?0.01:1}" local="pt-BR" min="0.00" width="70"> <p:ajax event="change" update="lancamentoNF:popupLancamentoNF:tabelaItensNF:#{indice}:valorTotalItem" listener="#{controladorPopupLancamentoNF.calcularValorTotalItem(itemEmbrulhado)}" global="false" /> <f:convertNumber maxFractionDigits="#{itemEmbrulhado.item.produto.detalheTributavel.unidadeFracionada?2:0}" minFractionDigits="#{itemEmbrulhado.item.produto.detalheTributavel.unidadeFracionada?2:0}" locale="pt-BR" for="quantidadeItem"/> </hrgi:spinner> </p:column> <p:column style="width: 5%" headerText="valor unitario"> <hrgi:spinner id="valorUnitarioItem" value="#{itemEmbrulhado.item.produto.detalheTributavel.valorUnitario}" dinheiro="true" fator="0.01" local="pt-BR" min="0.00" width="70"> <p:ajax event="change" update="lancamentoNF:popupLancamentoNF:tabelaItensNF:#{indice}:valorTotalItem" listener="#{controladorPopupLancamentoNF.calcularValorTotalItem(itemEmbrulhado)}" global="false"/> <f:convertNumber type="currency" currencyCode="BRL" currencySymbol="R$ " maxFractionDigits="10" minFractionDigits="2" locale="#{cc.attrs.local}" for="valorUnitarioItem"/> </hrgi:spinner> </p:column> <p:column style="width: 3%" headerText="valor total"> <h:outputText id="valorTotalItem" value="#{itemEmbrulhado.item.produto.valorTotal}"> <f:convertNumber type="currency" currencyCode="BRL" currencySymbol="R$ " maxFractionDigits="2" minFractionDigits="2" locale="pt-BR" for="valorUnitarioItem"/> </h:outputText> </p:column> ... (more columns) </p:dataTable> </h:panelGroup> </h:panelGroup> ``` It works when I update the panelGroup "painelItensNF" with complete id, but the focus is lost and user should find the input he was working to continue...