Get records from combobox option ds

[e.kousou]

Hello,

The story is this: I want to create a dynamic suggestion/autocomplete feature to a comboboxitem.
In this item i have setted a ds with which i fetch data when the keypress event is triggered. Also i have setted the comboboxitem's setFilterLocally and setUseClientFiltering to true. The method i use to fetch data is usernameComboBoxItem.fetchdata(DSCallback). Inside the callback i want to get the records that where returned from the ds but i get null instead. I have added the code below

Thanks in advance

ComboBoxItem usernameItem = new ComboBoxItem("usernameField",
                "Username");
usernameItem.setAutoFetchData(false);
        usernameItem.setFilterLocally(true);
        usernameItem.setUseClientFiltering(true);
usernameItem.addChangedHandler(new ChangedHandler() {

@Override
public void onChanged(ChangedEvent event) {
ComboBoxItem userNameItem = (ComboBoxItem) event.getItem();
if (userNameItem.getOptionDataSource() != null)
     userNameItem.getOptionDataSource().destroy();

userNameItem.setOptionDataSource(
    new GetSearchUserDS(event.getValue().toString(),ServerNames.getDefault().getName()));

userNameItem.fetchData(new DSCallback() {

                        @Override
                        public void execute(DSResponse dsResponse, Object data,
                                DSRequest dsRequest) {

                            GWT.log(dsResponse.getDataAsString());
                        }
                    });

[e.kousou]

Hello, Has anyone any idea about the issue above?

Thanks in advance

[Blama]

Hi e.kousou,

why don't you just set an optionDataSource on the ComboBoxItem? Do so outside the ChangedHandler (it is a one time setting) and leave the ChangedHandler away at all.

Best regards
Blama