I'm creating columns dinamically inside my component, the datatable then it's rendered correctly with the new columns, however actionListeners declared inside them are not executed. I have even checked that the component it's sending a request to the server... but it's like there were no action listener defined. Here's the code that I used to create the table, what could be wrong???.

public void addColumns(){
    UIDataTable dataTable = (UIDataTable) FacesContext.getCurrentInstance().getViewRoot().findComponent("frmAdmArt:dtArtResult");
    for(int i=0;i<2;i++){
            UIColumn column = (UIColumn) FacesContext.getCurrentInstance().getApplication().createComponent(UIColumn.COMPONENT_TYPE);              
            if(i==0){
                column.setStyle("width:36.5px;white-space:nowrap;");
                HtmlOutputText  values = (HtmlOutputText) FacesContext.getCurrentInstance().getApplication().createComponent(HtmlOutputText.COMPONENT_TYPE);
                values.setValue("No"+i);
                column.getChildren().add(values);
            }
            if(i==1){
                column.setStyle("width:151px;white-space:nowrap;");
                UICommandLink commandLink =  (UICommandLink) FacesContext.getCurrentInstance().getApplication().createComponent(UICommandLink.COMPONENT_TYPE);
                commandLink.addActionListener(getMethodExpressionActionListener("mymanagedBean.verDetalleArticulo"));
                commandLink.setValueExpression("value", createValueExpression("#{!empty detalle.codigoBarrasActivo.id.codigoBarras ? detalle.codigoBarrasActivo.id.codigoBarras : '----'}", String.class));
                commandLink.setTitle("Detalle artículo");
                commandLink.setExecute("@this");
                commandLink.setImmediate(true);
                commandLink.setId("verDetalle");          

                column.getChildren().add(commandLink);
            }      
            column.setId("col"+i);
            dataTable.getChildren().add(i, column);
    }  
}  
private MethodExpressionActionListener getMethodExpressionActionListener(String method){
    FacesContext facesContext = FacesContext.getCurrentInstance(); 
    return new MethodExpressionActionListener(facesContext.getApplication().getExpressionFactory().createMethodExpression(FacesContext.getCurrentInstance().getELContext(),
            "#{" + method + "}", Void.TYPE, new Class[] { ActionEvent.class }));
}

private ValueExpression createValueExpression(String valueExpression, Class<?> valueType) {              

              FacesContext facesContext = FacesContext.getCurrentInstance();

             return facesContext.getApplication().getExpressionFactory().createValueExpression( 

                      facesContext.getELContext(), valueExpression, valueType); 

          }