Expand All and Collapse All with Data table

Question

Hi Guys,
     I have a data table as shown in code pasted . where the first and second column have row category which gives a categorization with a twisty.
     When i click on the twisty or item name the level beneath it expands. Eerything works fine.. but i need to have to links     Expand All and Collapse All which when clicked open the entire hierarchy or collapse it. Can anyone suggest a way of doing. Can it be done using javascript, I am not comfortable with java script .If someone has done this before please share the piece of code.Also please suggest the different ways of doing it. I am using RAD 7 and IBM JSF components.
     <hx:dataTableEx border="0" cellpadding="2" cellspacing="0"
     columnClasses="columnClass1" headerClass="headerClass"
     footerClass="footerClass" rowClasses="rowClass1, rowClass2" binding="#{masterPublList.tablebindData}"
     id="tableEx1" styleClass="dataTableEx" value="#{masterPublList.lst_publication}" var="varlst_publication">
          <hx:columnEx id="columnEx3">
               <hx:panelRowCategory id="rowCategory2"
                    styleClass="panelRowCategory"
                    value="#{varlst_publication.publCategory}" collapsed="true">
               </hx:panelRowCategory>
          </hx:columnEx>
          <hx:columnEx id="columnEx2">
               <hx:panelRowCategory id="rowCategory1"
                    styleClass="panelRowCategory" value="#{varlst_publication.publSubCategory1}">
                    <h:outputText id="text5" styleClass="outputText"></h:outputText>
               </hx:panelRowCategory>
          </hx:columnEx>
          <hx:columnEx id="column1">
               <hx:outputLinkEx id="linkEx1" styleClass="outputLinkEx" value="#{varlst_publication.publUrl}" target="_blank">
                    <h:outputText id="text3" styleClass="outputText" value="#{varlst_publication.publName}"></h:outputText>
               </hx:outputLinkEx>
          </hx:columnEx>
          <hx:columnEx id="columnEx1">
               <h:selectManyCheckbox disabledClass="selectManyCheckbox_Disabled"
                    id="checkbox1" styleClass="selectManyCheckbox" value= "#{varlst_publication.publLang}">
                    <f:selectItems value= "#{masterPublList.lst_lang}"/>
               </h:selectManyCheckbox>
          </hx:columnEx>
     </hx:dataTableEx>
               Thanks in anticipation

Answer 1

Hi Naamkeek,
Per my understanding that you have added the Expand All and Collapse All button in an drill down report by adding the "Go to report" action, now you got the report always refresh and return to the first page, right?
I have tested on my local environment and can reproduce the issue, no matter whether to add two buttons or using the parameter to do the Expand All and Collapse All, it is always return to the first page.
Gernerally, SQL Server Reporting Services does a postback while clicking a expand/collapse icon. SSRS re-renders reports because it need to regenerate the pages to fit the defined width & Height. That is why SQL Server Reporting Services reloads
the whole report.
This is by design. And, currently, we are not able to turned it off.
I would suggest you submitting a wish at
http://connect.microsoft.com
If the service requests frequently, we may include it in the next release.
Appreciate your understanding, and if you have any more questions, please feel free to ask.
Regards
Vicky Liu