I have a DataForm and a GridView binding to two different DomainDataSources(use same DomainContext).

The DataForm.CurrentItem's navigation property able to modify from GridView.SelectedItem.

The first load GridView is fine,when I reload,the GridView's DomainDataSource didn't load(same query).

Even LoadingData not raised, so set e.LoadBehavior = LoadBehavior.RefreshCurrent is invalid.

Thanks for reply me.

I have a DataForm in a page. The navigation property use HyperlinkButton,when click the HyperlinkButton,then popup a Childwindow.

The Childwindow contain  a GridView and a DomainDataSource, the DomainDataSource.DomainContext came from the page.

When the Childwindow closed, the DataForm in the page will get the GridView.SelectedItem to set DataForm.CurrentItem's navigation property..

The issue is:First click the HyperlinkButton to open the Childwindow is fine, the second time, the DomainDataSource in Childwindow LoadingData not raised.

The reason why use same DomainContext is: Can't set entity's navigation property,which from two different entitycontainer.

I see now.

If DomainDataSource is changed, the HasChanges will be set true, and CanLoad will be set false.

Then any load will be canceled.