rich:extendedDataTable select row from bean without ExtendedTableModel

[poretsky]

Hello!

I'm trying to select rows from my bean using selection property of rich:extendedDataTable. Unfortunately without success. 

The only difference I can find between demos and my app is that I'm using ResultSetDataModel. So I don't have rowKey property in my datamodel. However selection property is working okay and contains rowIndex values of my extendedDataTable.

From my bean I'm trying to do something like this:

{code:java}
 private Collection<Object> selection;
    public void selectFirstRow() {
        selectRow(Integer.valueOf( (getPage()-1) * pageSize));
    }
    public void selectRow(Object row) {
        if (getSelection()==null){
            Collection<Object> s = new HashSet<Object>();
            s.add(row);
            setSelection(s);
        }else{
            getSelection().clear();
            getSelection().add(row);
        }
    }
{code}

And here is command button with a table somewhere

{code:xml}
<a4j:commandButton render="main_table1" id="selectFirstRow" action="#{bean.selectFirstRow}" value="select first row"/>
...
<rich:extendedDataTable  id="main_table1" value="#{bean.items}" var="row" 
                                            rows="#{bean.pageSize}" rowClasses="jsfcrud_odd_row,jsfcrud_even_row" style="border:solid 1px"
                                            selection="#{bean.selection}">
{code}

Is it possible to select row from bean in that way?

[chan32167]

try this:

<rich:extendedDataTable selectionMode="single"

                                selection="#{clienteDM.selection}" id="resultTable"

                                value="#{clienteController.clienteDataModel}" var="cliente"

                                rows="#{generalController.getFilasTablas('CLIENTES')}"

                                styleClass="widthSearchTable"

                                noDataLabel="#{msg.msj_tabla_vacia}">

                                <a4j:ajax event="selectionchange"

                                    listener="#{clienteController.selectionListener}"

                                    render="contentPanel, resultTable" />

...

</rich:extendedDataTable>

public void selectionListener(final AjaxBehaviorEvent event) {
    UIExtendedDataTable dataTable = (UIExtendedDataTable) event
            .getComponent();
    Object originalKey = dataTable.getRowKey();
     //We always have only 1 object on clienteDM.getSelection
    for (Object selectionKey : clienteDM.getSelection()) {
        dataTable.setRowKey(selectionKey);
        if (dataTable.isRowAvailable()) {
          //Do your logic here with 
          (Client) dataTable.getRowData();
          }
    }
     //Clean the selection
    clienteDM.setSelection(null);
    dataTable.setRowKey(originalKey);
}

Hope it works for you... as soon as client selects one row from the datatable the selectionListener is fired with <a4j:ajax event="selectionchange" ... >

[poretsky]

Thanks for your response but I have no problems selecting rows from a client (using selectionListener). I have difficulties selecting rows from a bean in way client could "see" selection changes. And I showed an example trying to change selection attribute from a bean hoping it will have effect on a client. Without success...

[poretsky]

Solved!

It is useful to use sometimes source debugging. Here is right code snippet for server side row selection:

{code:java}
    public void selectRow(Object row) {
        if (getSelection()==null){
            Collection<Object> s = new HashSet<Object>();
            s.add(row);
            setSelection(s);
        }else{
            getSelection().clear();
            getSelection().add(row);
        }
        UIExtendedDataTable table = (UIExtendedDataTable) FacesContext.getCurrentInstance().getViewRoot().findComponent("main_form1:main_table1");
        table.getAttributes().put("activeRowKey", row);
        //table.setRowKey(row);
    }  
{code}