Primefaces datatable: row selection not works, selected row is null

[daniele licitra]

Hi to all.
I've a datatable defined in a bean and when I select a row, the related variable is not updated.

the page code is
... <p:dialog appendToBody="true" modal="true" id="dialogofk" widgetVar="dlgFK" closable="true" dynamic="true" draggable="true" > <p:dataTable binding="#{sessioneUtente.tabellaFK}"/> </p:dialog> ...

and "tabellaFK" is defined in sessioneUtente (is a session scooped CDI bean) and initialized in this method:

public void initDtFk(String id){
        ValueExpression ve;
        this.dtFk = new DataTable();
        dtFk.setEmptyMessage(messages.getString("norecord"));
        dtFk.setSelectionMode("single");
        dtFk.setLazy(true);
        dtFk.setPaginator(true);
        dtFk.setRows(10);
        ve = JSFutils.createValueExpression(
                "#{"+NOME_BEAN+".fkselezionata}",BssStandardEntity.class);
        dtFk.setValueExpression("selection", ve);
        ve = JSFutils.createValueExpression(
                "#{"+NOME_BEAN+".listaRecordFK}",LazyDataModel.class);
        dtFk.setValueExpression("value", ve);
        dtFk.setVar("fkrecord");
        ValueExpression rk = JSFutils.createValueExpression("#{fkrecord.getField(0)}",int.class);
        dtFk.setValueExpression("rowKey", rk);
        // colonne dinamiche
        Columns cc = new Columns();
        cc.setValueExpression("value", JSFutils.createValueExpression(
                "#{"+NOME_BEAN+".fkNomiColonne}",List.class));
        cc.setVar("colonna");
        cc.setColumnIndexVar("colIndex");
        // definizione di una colonna tipo
        HtmlOutputText t = new HtmlOutputText();
        t.setValueExpression("value", JSFutils.createValueExpression("#{colonna}"));
        cc.getFacets().put("header", t); 
        // definizione contenuto della colonna
        HtmlOutputText tc = new HtmlOutputText();
        tc.setValueExpression("value", JSFutils.createValueExpression("#{fkrecord.getField(colIndex)}"));
        cc.getChildren().add(tc);
        dtFk.getChildren().add(cc);
        
        // action select =======================================================
        AjaxBehavior rs = new AjaxBehavior();
        //rs.setProcess("@(this) "+CMP_HIDDEN_FK);
        rs.setUpdate("@(this) "+CMP_HIDDEN_FK);
        dtFk.addClientBehavior("rowSelect", rs);
        
        //imposta azione select doppioclick ====================================
        AjaxBehavior dblselect = new AjaxBehavior();
        MethodExpression me = JSFutils.createMethodExpression(facesContext, 
                "#{"+NOME_BEAN+".actionSetFK()}",null,null);
        AjaxBehaviorListenerImpl abli = new AjaxBehaviorListenerImpl(me, null);
        dblselect.setUpdate(CMP_GRIGLIA_CAMPI + " "+CMP_GROWL);
        dblselect.setProcess("@(this)");
        dblselect.addAjaxBehaviorListener(abli);
        dblselect.setOnsuccess(CMP_DIALOGO_FK_WV+".hide()");
        dtFk.addClientBehavior("rowDblselect", dblselect);
    }

the selected value must be saved in "bean.fkselezionata".
I've getter and setter defined in bean, but when the action "rowselect" is thrown, the method
setFkselezionata(Entity x){ this.fkselezionata = x};
has x=null !

fkselezionata is an entity and has an "id" field. i've tried to set
rowKey="#{fkrecord.id}" or rowKey="#{fkrecord.getField(0)}"
in datatable but the result is the same. The variable x is always null!

The same result is obtained also for rowDblselect ajax action :(

[daniele licitra]

ok, the problem is in the dialog.
With appendToBody="true", the dialog is written appended to the body, outside the form.

But modal="true" require appendToBody, so I used this trick:

<p:dialog appendToBody="false" modal="false" id="dialogofk" widgetVar="dlgFK" closable="true" dynamic="true" draggable="true" onShow="buidfk.show()" onHide="buidfk.hide()"> <p:dataTable binding="#{sessioneUtente.tabellaFK}"/> </p:dialog> <p:blockUI id="blockdialogofk" block="pannellocentrale" widgetVar="buidfk" />

The dialog event activate/deactivate the block ui :)

Now it works.