LINQ to SQL DBML:拖放更改的表名

Currently we are manually updating the DBML by deleting all tables and then re-adding all of them again through Server Explorer. We have had no problems doing it this way before. Recently after deleting and then re-adding all of the tables, one or two of the tables will have changed their names having us to go back and fix either the DBML or the LINQ objects in the code behind.Currently we are manually updating the DBML by