I'm currently using the 10.1 release of XamWebGrid (10.1.20101.1005) and I'm running into an issue with the data binding for UnboundColumns.

We've adapted a ADO.NET DataTable construct for our uses in SL.  I've been able to bind successfully using both the Value converter, and a binding path expression in a DataTemplate but I'm running into the following problems:

1. Changes in the DataRow aren't immediately reflected in the XamDataGrid.  They are however reflected immediately in a ListBox which is using a similar binding, and reflected when I click on the ActiveCell.  Is there a way that I can call a manual binding refresh?  The binding appears to work, it's just delayed.
2. I can't seem to make my UnboundColumns editable.  It complains about a Binding Error which I don't get when I don't have EditingSettings.AllowEditing = None.  The BindingExpression path error I'm getting is:

System.Windows.Data Error: BindingExpression path error: 'ValueX' property not found on 'Silverlight.DataRow' 'Silverlight.DataRow' (HashCode=44100051). BindingExpression: Path='ValueX' DataItem='Silverlight.DataRow' (HashCode=44100051); target element is 'Infragistics.Silverlight.Controls.Cell+a' (Name=''); target property is 'Value' (type 'System.Object')..

How do I correctly set up UnboundColumns to allow editing?

Any help on either of these issues would be appreciated.  Thanks in advance,

Micah Tan