How to: Represent Columns as Database-Generated (LINQ to SQL)
Use the LINQ to SQL IsDbGenerated property on the ColumnAttribute attribute to designate a field or property as representing a database-generated column.
For code examples, see IsDbGenerated.
To designate a field or property as representing a database-generated column
Add the IsDbGenerated property to the ColumnAttribute attribute.
Set the property value to true.
See Also
Concepts
Other Resources
How to: Customize Entity Classes by Using the Code Editor (LINQ to SQL)