For entities with nullable fields is there a setting in the designer that sets empty string values to null when inserting the record to the database.

When creating a new entity and saving it if I do not set the value of a nullable property the value is an empty string in the database. I want it to be null by default.

If you don't set a field, nothing would be generated for it in the INSERT command. In that case, Null should be saved in the database, unless you have a default value set in the database.