Hi,

I need to get a multiple select drop down component.

How can this be acheieved?



I tried










I get the Objects displayed, but I need the name to be displayed instead.



And when I try to submit, I get an error
j_idt50:groups: Validation Error: Value is not valid



though the values are displayed correct in the view source



com.entity.Group@ffc9ca com.entity.Group@118f163



Here is my code



@ManagedBean (name="groupController")

@SessionScoped

public class GroupController {

public SelectItem[] getItemsAvailableSelectMany() {

return JsfUtil.getSelectItems(ejbFacade.findAll(), false);

}

}



public class GroupConverter implements Converter {

public String getAsString(FacesContext facesContext, UIComponent component, Object object) {

if (object instanceof Group) {

Group o = (Group) object;

return new String(new Integer(o.getGroupId()).toString());

}

}

}