This is specifically what is going on in my application:

However, regardless of how I bind my dataset... it keeps showing up without data. Here's the code in my edit handler (GetApplicationReleases returns a dataset):

Private Sub ApplicationReleaseDataGrid_EditCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs ) Handles ApplicationReleaseDataGrid.EditCommand
ApplicationReleaseDataGrid.EditItemIndex = e.Item.ItemIndex
ApplicationReleaseDataGrid.DataSource = _application.GetApplicationReleases
End Sub