using <p:dataTable> cellEdit event is never fired in Primefaces - jsf

Question

I am having issue in firing an ajax call on the cellEdit event of a Data Table. The table shows up just fine on the UI but nothing happens when I click any of the cell.
xhtml
<h:form>
<p:dataTable id="decisionTree" var="tree"
value="#{treeBean.content}" editable="true" editMode="cell"
styleClass="smallGrid">
<f:facet name="header">
Notes Decision Tree
</f:facet>
<p:ajax event="cellEdit" listener="#{treeBean.onCellEdit}"
immediate="true" update=":#{p:component('notesTextArea')}" />
<p:column headerText="Comment Type">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{tree.commentType}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{tree.commentType}" disabled="true" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="MTCNs">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{tree.mtcns}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{tree.mtcns}" disabled="true" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Call Type">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{tree.callType}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{tree.callType}" disabled="true" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Phone">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{tree.phone}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{tree.phone}" disabled="true" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Dispute Reason">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{tree.disputeReason}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{tree.disputeReason}" disabled="true" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Placement Decision">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{tree.placementDescision}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{tree.placementDescision}" disabled="true" />
</f:facet>
</p:cellEditor>
</p:column>
<!--
<p:column>
<p:rowEditor />
</p:column>
-->
</p:dataTable>
</h:form>
Here is the Bean.
#Component("treeBean")
#Scope(value = "view", proxyMode = ScopedProxyMode.TARGET_CLASS)
public class TreeBean {
private List<TreeDto> content;
private String result="";
public List<TreeDto> getContent() {
return content;
}
public void setContent(List<TreeDto> content) {
this.content = content;
}
#PostConstruct
public void init() {
content=new ArrayList<TreeDto>();
TreeDto dto1=new TreeDto();
dto1.setCommentType("First Attempt");
dto1.setMtcns("mtcn1");
dto1.setCallType("OBC");
dto1.setPhone("8975730838");
dto1.setDisputeReason("Fraud");
dto1.setPlacementDescision("Write Off");
content.add(dto1);
}
public void onCellEdit(CellEditEvent event) {
RequestContext.getCurrentInstance().showMessageInDialog(new FacesMessage(FacesMessage.SEVERITY_INFO, "Status","something clicked"));
}
}
My intention to capture the value of the cells clicked. But I am not able to get an event fired in the first place on cell edit. Please give me some suggestions on how to resolve this.

Answer 1

Try to add a widgetVar to your dataTable and then edit your cell with a contextMenu for your data table, which call onclick="PF('yourWidgetVar').showCellEditor();return false;"
Somenthing like this
<p:contextMenu for="decisionTree" widgetVar="cMenu">
<p:menuitem value="Edit Cell" icon="ui-icon-search" onclick="PF('yourWidgetVar').showCellEditor();return false;"/>
<p:menuitem value="Hide Menu" icon="ui-icon-close" onclick="PF('cMenu').hide()"/>
</p:contextMenu>
You can take a look to Primefaces documentation too:
https://www.primefaces.org/showcase/ui/data/datatable/edit.xhtml