<dvt:headerCell>

dvt:headerCell headerCell header cell

UIComponent class: oracle.adf.view.faces.bi.component.pivotTable.UIHeaderCell
Component type: oracle.dss.adf.pivotTable.HeaderCell

Each immediate child of a Pivot Table component must either be a <dvt:headerCell> or <dvt:dataCell> component. The Pivot Table should contain at most one headerCell component and at most one dataCell component. These components make it possible to customize the cell content via stamping. The header cell can contain one or more read-only components. This tag also supports customized CSS style for the cells.

Header Cell Features

Stamping

Rather than having a separate child component for each header cell in the pivot table, the child component of the headerCell component is repeatedly rendered (stamped) once per header cell. Because of this stamping behavior, only certain types of components are supported as children inside a Header Cell. See the <dvt:pivotTable> tagdoc for more information.

As the headerCell content is stamped, the data for the current header cell is copied into an EL reachable property. The name of this property is defined by the var property on the Pivot Table. Once the Pivot Table has completed rendering, this property is removed (or reverted back to its previous value).

Supported Child Tags

Examples of components that are supported by <dvt:headerCell> include but are not limited to the following:

• <af:switcher>
• <af:outputText>
• <af:commandLink>

The headerCell should have only one child component. If multiple children are desired, they should be wrapped in another component. If no layout is desired, <af:group> can be used, which simply renders its children without adding layout, and is consequently lightweight. If layout is desired, a layout component like <af:panelGroupLayout> can be used instead. If multiple children are present without being wrapped, the current behavior is to vertically stack the components, but no guarantees or support are provided for this usage. To achieve vertical stacking, consider <panelGroupLayout layout="vertical">.

Example

The following example uses <af:switcher> to vary the type of stamped component by layer name (i.e. different content for Geography, Channel, etc.). The example also shows different components that can be used as child tag of <dvt:headerCell>

        
                <dvt:pivotTable id="goodPT"
                      value="#{pivotTableEdit.dataModel}"                                         
                      var="cellData"
                      varStatus="cellStatus">
                  <dvt:headerCell id="hc1">                    
                    <af:switcher id="sw" facetname="O__cellData_layerName_" defaultFacet="Other">
                      <f:facet name="Geography">
                        <af:panelGroupLayout id="pgl1">
                          <af:icon id="i1" name="info" shortDesc="Icon" />
                          <af:outputText id="ot1" value="#{cellData.dataValue}" />  
                        </af:panelGroupLayout>
                      </f:facet>
                      <f:facet name="Channel">
                        <af:commandLink id="cl1" immediate="true" action="guide" text="#{cellData.dataValue}" />  
                      </f:facet>
                      <f:facet name="Product">
                        <af:commandButton id="cb1" text="#{cellData.dataValue}" />  
                      </f:facet>
                      <f:facet name="Other">
                        <af:outputText id="ot2" text="#{cellData.dataValue}" />  
                      </f:facet>
                  </dvt:headerCell>
                </dvt:pivotTable>
        
        

Events

Attributes