I have very basic case, where I have a collection of a custom object with a bunch of properties that I want to pivot:

public MyStuff
{

public string Row1 { get; set;}
public string Row2 { get; set;}
public string Col1 { get; set;}
public string Co2 { get; set;}
public int Metric1 { get; set;}
public int Metric2 { get; set;}

}

ObservableCollection MyStuff { get; set;}
FlatDataSource DataSource { get; set;}

Init()
{
     MyStuff = GetStuff();
     DataSource = new FlatDataSource();
     DataSource.ItemsSource = MyStuff;

}

   
                    MaxWidth="300"
            DockPanel.Dock="Left"
            DataSource="{Binding DataSource}" />
                    AllowCompactLayout="True"
            DataSource="{Binding DataSource}">
       
   

On the screen, I can drag/drop my objects properties from the data selector on the pivot grid, and everything is fine, EXCEPT, I don't see the totals rolls, and I can't collapse/expand.

In the examples provided, this seems to work fine without anything special.  Do I need to do anything special to have the totals rows/columns show up and be able to expand/collapse the hierarchies?

*Edited: Fixed typo in binding