I am using linq to sql objects for a used parts table.  I can bind the data to a xamDataGrid, which shows correctly on the initial load.  However, once changes are made to the linq object, the data never shows up on the grid until I completely recreate the form.  Otherwise, it never refreshes.

At first glace this would appear to be an InotifyPropertyChanged event missing or not firing, but these should be created and working since this is a LINQ object. 

With that said I am kind of  out of ideas. Here is the CS (I will not past the grid, but can if you think there's something wrong there.).  Thanks in advance.

            grdPartsUsed.DataSource = _fsReport.PartsUseds;