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https://jira.jboss.org/jira/browse/RF-3786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12491830#action_12491830
 ] 

ashutosh commented on RF-3786:
------------------------------

there is still a problem with the extra <th>

when i use 
<rich:dataTable value="#{capitalsBean.capitals}" var="capital">
        <rich:column>
                 <f:facet name="header">Capital Name</f:facet>
        </rich:column>
       <rich:column>
          <f:facet name="header">Property Name</f:facet>
     </rich:column>
    <rich:column>
         <f:facet name="header">Property Value</f:facet>
    </rich:column>


          
<rich:subTable value="#{capital.detailList}" var="detail">
             <rich:column />
            <rich:column>
                      <h:outputText value="#{detail.key}" />
           </rich:column>
           <rich:column>
                      <h:outputText value="#{detail.value}" />
          </rich:column>
      </rich:subTable>
 </rich:dataTable> 


THE EXAMPLE DEMO WHICH IS MENTIONED ABOVE IS FROM THE LIVEDEMO OF EXADEL SITE 
THEN I WANT TO COMMENT ON THAT 

THIS IS THE EXAMPLE IF I AM NOT WRONG MENTIONED IN THE REPORT 


-----
<rich:dataTable 
                    onRowMouseOver="this.style.backgroundColor='#F1F1F1'"
                    
onRowMouseOut="this.style.backgroundColor='#{a4jSkin.tableBackgroundColor}'"
                    cellpadding="0" cellspacing="0" 
                    width="700" border="0" var="record" 
value="#{report.expReport.records}">
                
                    <f:facet name="header">
                        <rich:columnGroup>
                            <rich:column rowspan="2">
                                <rich:spacer />
                            </rich:column>
                            <rich:column colspan="3">
                                <h:outputText value="Expenses" />
                            </rich:column>
                            <rich:column rowspan="2">
                                <h:outputText value="subtotals" />
                            </rich:column>
                            <rich:column breakBefore="true">
                                <h:outputText value="Meals" />
                            </rich:column>
                            <rich:column>
                                <h:outputText value="Hotels" />
                            </rich:column>
                            <rich:column>
                                <h:outputText value="Transport" />
                            </rich:column>
                        </rich:columnGroup>
                    </f:facet>
    
                    <rich:column  colspan="5">
                    <h:outputText value="#{record.city}" /></rich:column>
                    
                    
                    <rich:subTable
                        onRowMouseOver="this.style.backgroundColor='#F8F8F8'"
                        
onRowMouseOut="this.style.backgroundColor='#{a4jSkin.tableBackgroundColor}'"
                        var="expense" value="#{record.items}">
                        <rich:column>
                            <h:outputText value="#{expense.day}"></h:outputText>
                            <f:facet name="footer">
                                <rich:spacer />
                            </f:facet>
                        </rich:column>
                        <rich:column>
                            <h:outputText 
value="#{expense.meals}"><f:convertNumber   pattern="$####.00"  
/></h:outputText>
                            <f:facet name="footer">
                                <h:outputText 
value="#{record.totalMeals}"><f:convertNumber  pattern="$####.00" 
/></h:outputText>
                            </f:facet>
                        </rich:column>
                        <rich:column>
                            <h:outputText 
value="#{expense.hotels}"><f:convertNumber  pattern="$####.00"  
/></h:outputText>
                            <f:facet name="footer">
                                <h:outputText 
value="#{record.totalHotels}"><f:convertNumber   pattern="$####.00"  
/></h:outputText>
                            </f:facet>
                        </rich:column>
                        <rich:column>
                            <h:outputText 
value="#{expense.transport}"><f:convertNumber   pattern="$####.00"  
/></h:outputText>
                            <f:facet name="footer">
                                <h:outputText 
value="#{record.totalTransport}"><f:convertNumber   pattern="$####.00"  
/></h:outputText>
                            </f:facet>
                        </rich:column>
                        <rich:column>
                            <rich:spacer></rich:spacer>
                            <f:facet name="footer">
                                <h:outputText 
value="#{record.total}"><f:convertNumber   pattern="$####.00"    
/></h:outputText>
                            </f:facet>
                        </rich:column>                  
                        
                    </rich:subTable>
        
                    <f:facet name="footer">
                
                        <rich:columnGroup>
                            <rich:column>Totals</rich:column>
                            <rich:column>
                                <h:outputText 
value="#{report.expReport.totalMeals}"><f:convertNumber   pattern="$####.00"  
/></h:outputText>
                            </rich:column>
                            <rich:column>
                                <h:outputText 
value="#{report.expReport.totalHotels}"><f:convertNumber   pattern="$####.00"  
/></h:outputText>
                            </rich:column>
                            <rich:column>
                                <h:outputText 
value="#{report.expReport.totalTransport}"><f:convertNumber   
pattern="$####.00"  /></h:outputText>
                            </rich:column>
                            <rich:column>
                                <h:outputText 
value="#{report.expReport.grandTotal}"><f:convertNumber   pattern="$####.00"  
/></h:outputText>
                            </rich:column>
                        </rich:columnGroup>
                    </f:facet>
        
                </rich:dataTable>


-------



this dataTable in the above is using <rich:columnGroup>
it is fine when using the property 
but the dataTable losses some of its property like ---- sortBy , which is one 
of the features in dataTable 
if this is the case then is there any solution to this that i will retain the 
like ---- sortBy and doesnot face the problem of of extra <th> 

if   <rich:columnGroup> is the only solution please comment on this 

> subTable in dataTable adds additional <th>
> ------------------------------------------
>
>                 Key: RF-3786
>                 URL: https://jira.jboss.org/jira/browse/RF-3786
>             Project: RichFaces
>          Issue Type: Bug
>          Components: planning_all
>    Affects Versions: 3.2.0.SR1, 3.2.1
>         Environment: RF-3.2.[01], JSF-RI implementation
>            Reporter: Andreas Heiduk
>            Assignee: Alexander Dubovsky
>             Fix For: 3.3.0
>
>   Original Estimate: 4 hours
>  Remaining Estimate: 4 hours
>
> As soon as a dataTable contains both subTable and a column "header" facet an 
> additional <th> element is rendered.
> Example:
> <rich:dataTable value="#{capitalsBean.capitals}" var="capital">
>       <rich:column>
>               <f:facet name="header">Capital Name</f:facet>
>               <h:outputText value="#{capital.name}" />
>       </rich:column>
>       <rich:column>
>               <f:facet name="header">Property Name</f:facet>
>       </rich:column>
>       <rich:column>
>               <f:facet name="header">Property Value</f:facet>
>       </rich:column>
>       <rich:subTable value="#{capital.detailList}" var="detail">
>               <rich:column />
>               <rich:column>
>                       <h:outputText value="#{detail.key}" />
>               </rich:column>
>               <rich:column>
>                       <h:outputText value="#{detail.value}" />
>               </rich:column>
>       </rich:subTable>
> </rich:dataTable>
> Now <thead> contains *four* <th> elements instead of three. The last <th> 
> element looks like this:
>         <th class="dr-table-subheadercell rich-table-subheadercell" 
> scope="col"/>

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