An error occurred while refreshing the data from field 'ChkSourceBO.3' to property 'Text' on control 'fldIncrement.'  Are you missing FieldPropertyDescriptor for a custom property?

I figure this is some kind of conversion or formatting thing trying to go from an integer to a string.  Am I missing anything here?  Why is my field showing as ChkSourceBO.3 when the field is ChkSourceBO.FloatIncr?  The value it's trying to populate is 3...not sure what that's about.  Any ideas?