How to: Represent Computed Columns

Use the LINQ to SQL Expression property on a ColumnAttribute attribute to represent a column whose contents are the result of calculation.

For code examples, see Expression.


LINQ to SQL does not support computed columns as primary keys.

To represent a computed column

  1. Add the Expression property to the ColumnAttribute attribute.

  2. Assign a string representation of the formula to the Expression property.

See also