[CLOSED] Simple ComboBox problem

[lucasas]

SimpleComboBox doesn't work when I set the displayfield attribute. It doesn't display value.

Simple code:


import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import com.extjs.gxt.ui.client.widget.LayoutContainer;
import com.extjs.gxt.ui.client.widget.form.SimpleComboBox;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;

public class Index extends LayoutContainer implements EntryPoint {

public void onModuleLoad() {
List<User> users = new ArrayList<User>();
User user = new User();
user.setName("Lucas");
users.add(user);

SimpleComboBox<User> combo = new SimpleComboBox<User>();
combo.add(users);
combo.setDisplayField("name");
RootPanel.get().add(combo);

}

class User implements Serializable {
private static final long serialVersionUID = 3307344504260878694L;
private String name;

public void setName(String name) {
this.name = name;
}

public String getName() {
return name;
}
}
}

[gslender]

add a
public String toString() method to User at it will....

[lucasas]

But I want set the displayfield attribute

[lucasas]

Even doing this doesn't work.
I subscribed the toString method and doesn't work.

[gslender]

I'm doing the very same thing and it does work for me... the toString returns the name I want displayed. I also have it working with an Enum - which is cool becuase I have a constant item to refer to item selected etc and it displays correctly with the i18n name... very nice indeed.

Post some sample code that shows it not working....
Cheers,
Grant

[darrellmeyer]

SimpleComboBox does not use the display property. It simply uses the value added to the combo box. If you want to use a ModelData instance with a display property you should not use SimpleComboBox.