In a Business Layer with Busines Entities with CRUD Behaviors (has
described here [1] at Cap. 'Defining Custom Business Entity Components with
CRUD Behaviors') typically
1) the Update() method have zero parameters
2) the Update() method is in a Business Entity class say Author, while the
SelectAuthorsByXxx() methods that get filtered lists of authors is in
another Business Entity say Authors class.
But... ObjectDataSource:
1) don't let me set a method with zero parameters to UpdateMethod!
2) don't let me set SelectMethod and UpdateMethod from 2 different classes!
To use ObjectDataSource in real world application I had do write a wrapper
like this:
public static class AuthorsWrapperForObjectDataSource {
public static List<Author> SelectAuthorsByState(string state, string
sortExpression) {
return AuthorsList.GetAuthorsByState(state, sortExpression);
}
public static int UpdateAuthor(Author author) {
return author.Update();
}
}
I have to write a wrapper for ObjectDataSource also when I have a Business
Layer with Busines Entities without CRUD Behaviors (has described here [1]
at Cap. 'Defining Custom Business Entity Components').
Am I missing the correct usage of ObjectDataSource or someone else noted
these ObjectDataSource limitations?
TIA (luKa)
http://nullabletypes.sf.net/
http://dev.luca.minudel.it/
http://www.luca.minudel.it/eng/
[1] Designing Data Tier Components and Passing Data Through Tiers,
Microsoft, 2002
http://msdn.microsoft.com/library/default.asp?url=/library/en-
us/dnbda/html/BOAGag.asp
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