# System.Data.Linq.ChangeConflictException: Row not found or changed

Set *all* non primary-key column's UpdateCheck property to *Never* in the DBML file.

Reference : [https://stackoverflow.com/questions/805968/system-data-linq-changeconflictexception-row-not-found-or-changed](https://stackoverflow.com/questions/805968/system-data-linq-changeconflictexception-row-not-found-or-changed)