Widget won't load with Datagrid sorthandler

[RAJ]

Hi,

In my project, when I load only the composite with bare elements, it will load fine, but when I have the sorthandler defined for datgrid, the composite won't load at all. I have attached the code for entrypoint and composite.

If the constructor is changed only to have initwidget, then the composite will load fine.

I am using Eclipse Juno and GWT 2.5 rc1 on Windows 7, and testing on chrome.

Please suggest a solution.

Thanks.

[Fille]

Do you get any exceptions?

It seems that the problem is that you don't initialize dataGrid.

Use something like: 

@UiField(provided = true)

DataGrid<FileProperties> dataGrid;

And in constructor:

dataGrid = new DataGrid<FileProperties>(KEY_PROVIDER);

Example: http://showcase3.jlabanca-testing.appspot.com/#!CwDataGrid

[Jens]

Don't you get a NullPointerException? Your "dataGrid" variable should be null until you call initWidget(uiBinder.createAndBindUi(this)) which fills all the @UiField variables.

Rule of thumb: Access a @UiField after initWidget(uiBinder.createAndBindUi(this)) has been called and if you use @UiField(provided = true) initialize the variable yourself before initWidget(uiBinder.createAndBindUi(this)) is called.

-- J.

[RAJ]

Thanks Jens and Fille.

That was the problem. I forgot to initialize the datagrid. Can't beleive how I missed that.

Thanks a ton for you help.

RAJ