I have a combo box which is populated at runtime with string values (not from an enum).  It is then bound to an enum value which is the selected index of the combo.  I'm seeing some weird behavior in that I can select an item from the dropdown, but immediately when it loses focus the index returns back to the previously selected item.  It's just like the value i'm selecting isn't "sticking" after the combo loses focus.  I am not handling any events that I can see which are modifying this value at all.  The only thing I could figure is that it's something weird with how I setup the enum since I just changed this to be an enum in the mapper instead of an int.  I thought I did it correctly, but perhaps I could have missed a step somewhere?