How to constraint no empty strings on an NVARCHAR column

Question

I add a NOT NULL constraint on my NVARCHAR column so it couldn\'t allow any empty values. but unfortunately SQL Server deals with NULL

Answer 1

• If the value is being assigned a string property you can add logic at the property set method.
• If you would rather enforce this at the SQL layer then tvanfosson's answer is good.
• Unfortunately using a trigger is not going to work because a trigger can not affect the record being inserted...