Database Primary Key C# mapping - String or int

Question

In the Northwind Starters Kit, Primary keys from database are mapped to Strings in C#.

Is this good practice? And if so, why?

thx, Lieven Cardoen

ps:

Answer 1

It all depends on the data type of the column in the database.

Good practice is to use a compatible/corresponding data type. If the database uses int, use int. If the database uses uniqueidentifier, use Guid. If the database uses nvarchar, use string.

Anything else will give problems down the line. Guaranteed.