Linq-to-SQL忽略SQL Server默认值

When using Linq-to-SQL, adding a column to an existing table, and setting a default value on that new column, it seems that Linq to SQL ignores the default value. Has anyone else experienced this behaviour? Is there a way to fix it, so that Linq-to-SQL or SQL Server automatically sets the default value? When using Linq-to-SQL, adding a column to an e