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

Always use the corresponding C# datatype for the Sql datatype. As other posters have noted, to do anything else is asking for problems later on.

Have a look at this article: http://msdn.microsoft.com/en-us/library/ms131092.aspx for a full list of Sql Server / C# data type equivalents.