使用SqlMetal和Visual Studio时自动生成DataContext设计器文件

I am using SqlMetal to general my DataContext.dbml class for my ASP.net application using LinqToSql. When I initially created the DataContext.dbml file, Visual Studio used this to create a related DataContext.designer.cs file. This designer file contains the DataContext class in C# that is used throughout the app (and is derived from the XML in the dbml file) and is essential to bridging the gap between the output of SqlMetal and using the DataContext with LinqToSql. to general my DataContext.d