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Asked: 2026-05-11T15:08:17+00:00

I’v e built a basic DAL which can retrieve data and a businesslayer with

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I’v e built a basic DAL which can retrieve data and a businesslayer with several objects using this DAL. Once I mapped the data into the business objects and done something with it, I also want to write the data back to the database. Some of the business objects have a lot of properties, so passing every value of a business object as parameter to a method of the corresponding dataservice is not a possibility.

Other ways I’ve been thinking of:

  1. pass the business object to the the corresponding data service, there execute a SP with all the values as parameters. – sucks, because I have to pass a business object to the DAL (violating the separation) and probably end up with SPs with >50 parameters

  2. create an empty (?) dataset within the business object, fill it with the values from the business object, pass that dataset to the data service and update the db via a dataadapter. I thought of creating an empty dataset with a ‘… WHERE 0’-SQL String. Would that be a good practice?

This is the first time I do something like this. The latter sounds better to me, but maybe there are other, better approaches? Or The first one is better for some reasons I don’t know?

Thank you very much!

[edit:] I can’t use LinQ2SQL, cuz I use C# Express (which only supports querying local DBs, while mine is a remote one)

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  1. Pass your object into your DAL. If your writting the DAL layer manually your DAL layer should know how to take an Entity and persist it to the DB, and how to return an Entity from the database. The DAL is about persistance of your entities to a non-volatile medium.

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