I'm sure I'm missing something small here, but the behavior of the Inherited RadioGroup control from DevEx is not binding to my BO like i expected it would.  I have placed several on my form with a grid and several other controls which bind to the BO.  As I select a row in the grid, I want my controls to populate.  This is working perfectly for everything except the radiogroup controls, so it is specific to this type of control.  I have my BindingField and BO set correctly.  If I set the BindingProperty to SelectedIndex, it populates and changes like I want it to.  However, when I edit that record and change the radio group selection it doesn't keep the change.  It lets me select a different radio button, but when I click out of the radio group it reverts to the original value from the BO.  I changed BindingUpdateMode to Never and it took this behavior away, but I want it to update the BO when I make a change.  So what am I missing?