How to get sequence number for tree level in tree table

Question

Hi,
User would like to add a column as "Sequence" in the beginning of tree table. The tree table look like as following:
Sequence Tasks Date
1 ItemA
subItem1 12/31/12
subItem2 12/31/13
subItem3 12/31/14
2 ItemB
subItem1 12/31/12
subItem2 12/31/13
subitem3 12/13/14
How to add this sequence column in tree table?
Thanks!
Susan

Answer 1

Check this sample:
<af:form id="f1">
                <af:treeTable value="#{bindings.Departments.treeModel}" var="node" styleClass="AFStretchWidth"
                              columnStretching="last" selectionListener="#{bindings.Departments.treeModel.makeCurrent}"
                              rowSelection="single" id="tt1">
                    <f:facet name="nodeStamp">
                        <af:column id="c1" headerText="Department Name" width="200">
                            <af:outputText value="#{node.index + 1} #{node.DepartmentName}" id="ot1"
                                           visible="#{bindings.Departments.treeModel.depth == 0}"/>
                        </af:column>
                    </f:facet>
                    <f:facet name="pathStamp"></f:facet>
                    <af:column id="c2" headerText="Employee Name">
                        <af:outputText id="ot4" value="#{node.FirstName} #{node.LastName}"/>
                    </af:column>
                </af:treeTable>
            </af:form>Thanks,
Navaneeth