How to: Customize Entity Classes by Using the Code Editor (LINQ to SQL)
.NET Framework 4
Developers using Visual Studio can use the Object Relational Designer to create or customize their entity classes. For more information, see Object Relational Designer (O/R Designer) and Object Relational Designer (O/R Designer).
You can also use the Visual Studio code editor to write your own mapping code or to customize code that has already been generated. For more information, see Attribute-Based Mapping (LINQ to SQL).
The topics in this section describe how to customize your object model.