How do I ensure Linq to Sql doesn't override or violate non-nullable DB default values?

Question

I have an SQL Server DB with a table with these fields:

1. A bit with the default value 1, NOT NULL.
2. A smalldatetime

Answer 1

You can create another file for your datacontext (partial class) and then use the InsertYOURENTITY and UpdateYOURENTITY partial methods to inspect your properties and assign the proper values. Call ExecuteDynamicInsert or ExecuteDynamicUpdate after your code and you're set.