HideShow in table column in uix page

Question

Hi EveryBody,
I am usin JDeveloper 9051+ adf+uix.
In that i'm trying to put a <hide show /> component in a column.
Hide and show is running but it does work for all the rows at a time since id of each <hideshow/> is same (i mean to say that all hideshows work at the same time) and i want it to work for the particular row in which the hide show is pressed.
This is my code snippet kindly help in this:
<hideShow id="hideshow1" disclosed="${'show'==uix.pageState.hideshow1}">
<contents>
<flowLayout>
<contents>
<labeledFieldLayout>
<contents>
<textInput model="${uix.current.Asset.KeyId}" columns="10" readOnly="true"/>
</contents>
</labeledFieldLayout>
<labeledFieldLayout>
<contents>
<textInput model="${uix.current.Asset.Description}" columns="10" readOnly="true"/>
</contents>
</labeledFieldLayout>
<labeledFieldLayout>
<contents>
<textInput model="${uix.current.Asset.Image}" columns="10" readOnly="true"/>
</contents>
</labeledFieldLayout>
<labeledFieldLayout>
<contents>
<textInput model="${uix.current.Asset.ShortDescription}" columns="10" readOnly="true"/>
</contents>
</labeledFieldLayout>
</contents>
</flowLayout>
</contents>
</hideShow>
<handlers>
<event name="hide show">
<set target="${uix.pageState}" property="${param.source}" value="${param.event}" />
</event>
</handlers>
Thanks in advance.

Answer 1

Use detailDisclosure. It handles (almost) everything for you.
The LinkageError is not caused by the detailDisclosure.
In your table:
                <table model="${bindings.AppointmentInformationView1}"
                       detailDisclosure="${uix.eventResult.detailData}"
                       alternateText="${uix.data.nlsMed.NoRecordsFound_LABEL}">
                  <contents>
                    <column>
                    </column>
                  </contents>
                  <detail>
                    <rowLayout width="100%" vAlign="top">
                      <contents>
                          PUT YOUR DETAIL COMPONENTS HERE!
                      </contents>
                    </rowLayout>
                  </detail>
                  <tableSelection>
                  </tableSelection>
                </table>You are telling the table that the information about which rows are to be expanded can be found in the event result in detailData.
Now you need an event handler in that page:
    <event name="show hide">
      <!-- show the table details -->
      <method class="foo.bar.UixHelper" method="doHideShowEvent"/>
    </event>The show/hide events will go to a class (that you will provide) and the static method doHideShowEvent() will be called. That method must return the EventResult containing detailData.
Simple so far: You tell the table that the hide/show information comes in the EventResult object. You route the show/hide events to your class so that you can create the detailData and the EventResult object.
The next step takes a bit of coding. In your doHideShowEvent() method you must create the detailData object and return it wrapped in an EventResult.
The code looks like this:
  public static EventResult doHideShowEvent( BajaContext context,
                                             Page page,
                                             PageEvent event ) {
    // "source" contains the id of the UIX table
    String dataSetName = event.getParameter( "source" );
    int tableLength = 0;
    boolean discloseAll = false;
    PageEventFlattenedDataSet tableRows = new PageEventFlattenedDataSet( event,
        dataSetName );
    tableLength = tableRows.getLength( );    // the number of displayed table rows per
                                             // page (not the complete number of rows)
    // Remember the selected row for single selection tables (-1 means no selection)
    // Number of row in displayed page (independent from range)
    int selectedRowIndexOld = SelectionUtils.getSelectedIndex( tableRows );
    int selectedRowIndexNew;
    // Check if special row or show all
    String value = event.getParameter( UIConstants.VALUE_PARAM );
    int disclosureRowIndex;
    if( value.equals( UIConstants.VALUE_SHOW_ALL ) ) {
      disclosureRowIndex = tableLength;
      discloseAll = true;
    } else {
      // this is the row that must be (un)disclosed:
      disclosureRowIndex = Integer.parseInt( value );
    // decide whether we want to disclose or undisclose depending on the name
    // of the event (hide or show)
    boolean disclose = UIConstants.SHOW_EVENT.equals( event.getName( ) );
    if( discloseAll ) {
      // if all rows shall be processed, keep previous selected
      selectedRowIndexNew = selectedRowIndexOld;
    } else {
      if( disclose ) {
        // set the selected row automatically on the row where show event was issued by
        // the user.
        selectedRowIndexNew = disclosureRowIndex;
      } else {
        // If the user pressed "hide" the selection is only changed if no row is selected
        // not changed
        selectedRowIndexNew = disclosureRowIndex;
    DataObjectList detailData = new TableDetailData( tableRows, disclosureRowIndex,
        disclose, discloseAll );
    EventResult result = new EventResult( page );
    result.setProperty( "detailData", detailData );
    result.setProperty( "selectedRowIndex", new Integer( selectedRowIndexNew ) );
    return result;
  }    // end method doHideShowEventSascha